Super Star S1100 User manual

S1100
Ventilator
Operation Manual
Please read the manual carefully before operation.

I
Contents
Remarks of the picture, sign, term and abbreviation in the machine and manual............. 1
Safety item..................................................................................................................................... 4
Claim............................................................................................................................................... 5
Function..........................................................................................................................................6
Performance.................................................................................................................................. 6
Intended use.................................................................................................................................. 6
Adaption disease...........................................................................................................................6
Contraindication............................................................................................................................ 6
EMC Information........................................................................................................................... 7
The main structure and working principle for the ventilator................................................. 12
Main unit........................................................................................................................ 12
Structure........................................................................................................................ 12
Working Principle......................................................................................................... 14
Air compressor (if equipped with air compressor).................................................. 15
Structure........................................................................................................................ 15
Working Principle......................................................................................................... 15
O2 and Air blender....................................................................................................... 15
Working principle..........................................................................................................15
Preparation...................................................................................................................................16
Gas supply connection................................................................................................16
O2 connection...............................................................................................................16
Air connection............................................................................................................... 17
Filter drain......................................................................................................................17
Connection of breathing circuit pipe..........................................................................18
The installation and connection of exhalation valve...............................................19
Installation and connection of O2 sensor................................................................. 19
Installation of humidifier.............................................................................................. 20
Installation of nebulizer............................................................................................... 20
The installation and connection of O2 monitor，CO2 monitor and Oximeter.....20
Installation and use of pressure regulator................................................................21
Installation and use...................................................................................................... 21
On completion of operation........................................................................................ 21
Power supply................................................................................................................ 22
Main power—AC.......................................................................................................... 22
Back-up battery............................................................................................................ 22
Main power supply -----Backup battery transition................................................... 23
Low voltage of back-up battery.................................................................................. 23
Charge of back-up battery.......................................................................................... 23
Discharge of back-up battery..................................................................................... 23
Replacing of the back-up battery...............................................................................24
Fuse replacing.............................................................................................................. 24
Check before operation..............................................................................................................26
Check interval...............................................................................................................26

II
System check............................................................................................................... 26
Check for power supply alarm................................................................................... 26
Gas supply check.........................................................................................................27
Ventilation function check........................................................................................... 27
Check for Alarm function.............................................................................................27
Operation......................................................................................................................................29
Operation of ventilator.................................................................................................29
Ventilator panel and operation key............................................................................ 29
Start-up.......................................................................................................................... 30
Selection of VTL or VTHventilation mode................................................................ 30
Setting of ventilation mode and parameters............................................................ 31
Reset of alarm parameter........................................................................................... 33
Reset of system setting...............................................................................................34
Start up for operation——IPPV ventilation mode................................................... 35
Start up for operation——PCV ventilation mode.................................................... 37
Start up for operation——A/C ventilation mode...................................................... 39
Start up for operation——SIMV ventilation mode...................................................41
Start up for operation——SPONT/CPAP ventilation mode................................... 43
Start up for operation——PSV ventilation mode.....................................................45
Start up for operation——MANU ventilation mode.................................................47
Start up for operation——Apnoea function.............................................................. 47
Start up for operation——SIGH function.................................................................. 47
Start up for operation——nebulization function...................................................... 47
Start up for operation——Audio paused function................................................... 48
Start up for operation——key lock function............................................................. 48
Oxygen concentration calibration.............................................................................. 49
Operation of Air and O2 blender................................................................................ 49
Operation of air compressor（if equipped with air compressor ）......................49
On completion.............................................................................................................. 49
Alarm, warning and hint information........................................................................................ 50
Clearance and disinfection........................................................................................................ 52
Clearance and disinfection of the contact part with patient...................................52
Clearance and disinfection before first use..............................................................52
Clearance and disinfection of reusable part............................................................ 53
Using times for the reusable part...............................................................................53
Surface of the machine............................................................................................... 53
Maintenance................................................................................................................................ 54
Before everyday operation......................................................................................... 54
After operation of every patient..................................................................................54
Assemble after disinfection........................................................................................ 54
Every day or in case of needed................................................................................. 54
Every month or incase of needed..............................................................................54
Every three months or over 1000 hours....................................................................55
Operation over 1500 hours or 6 months....................................................................55
Every year or operation over 2500 hours..................................................................56
Every two years or operation over 5000 hours........................................................ 56

III
Waste disposal............................................................................................................................ 57
Disposal of battery and O2 sensor............................................................................ 57
Disposal of electronic and plastic parts.................................................................... 57
Scrap disposal of medical equipment.......................................................................57
Alarm and disposal system....................................................................................................... 58
Fault and solution way............................................................................................................... 64
Main technical specification.......................................................................................................65
Environment conditions...............................................................................................65
Classification.................................................................................................................65
Gas supply.................................................................................................................... 65
Power supply................................................................................................................ 65
Electromagnetism compatibility................................................................................. 66
Breathing system performance..................................................................................66
Breathing circuit pipe................................................................................................... 66
Humidifier...................................................................................................................... 67
Ventilation mode...........................................................................................................67
Ventilation parameter adjustment..............................................................................67
Ventilation parameter Monitoring range................................................................... 69
Technical specification of air compressor................................................................ 70
Noise.............................................................................................................................. 70
Additional part to ventilator.........................................................................................70
Monitoring equipment.................................................................................................. 70
Humidifier...................................................................................................................... 70
Alarm hint and protection............................................................................................71
Move, storage and transportation.............................................................................................73
Move.............................................................................................................................. 73
Storage.......................................................................................................................... 73
Transportation...............................................................................................................73
Others........................................................................................................................................... 73
Appendix：Installation diagram................................................................................................ 74

1
Remarks of the picture, sign, term and abbreviation in the
machine and manual
“△!“indicates you should read the operation manual
“△!warning “ and “ △!note” indicate if the instruction is not followed, there will be some
emergencies, please read and keep to all the “ warning” and “note” items
Warning: indicates that if the instruction is not followed, the machine may be damaged , you
and your patient may be injured.
Note: indicates that if the instruction is not followed , the machine may be damaged, and can
not work normally.
Hint：indicate you should pay attention to the explanation.
In the machine and manual, the picture, sign, term and abbreviation are used to replace the
language remarks. However, all these picture, sign, term and abbreviation are not all involved in
the machine and manual.
Table 1 Remarks of the picture, sign, term and abbreviation in the machine and manual
Picture, sign, term and abbreviation
Remarks
Read the operation manual
～
AC
B Class
Gas input
Audio paused
Lock
Unlock
VTH
Adult mode
VTL
Child mode
Parameter setting
System setting
Alarm setting
Main power supply indication
Backup power battery
Battery supply indication
Indication for low voltage of battery
Charging（main power supply）indication
Indication for internal power failure

2
Picture, sign, term and abbreviation
Remarks
Equipotential
Ground protection
Check valve
Trigger mark
IPPV
IPPV
A/C
AC
PCV
PCV
SIMV
SIMV
SPONT/ CPAP
SPONT/CPAP
PSV
PSV
or（MAUN）
MANU
Standby
Standby surface
nebulizer
！！！
high priority alarm
！！
medium priority alarm
FiO2
O2concentration of inhalation
MV （Minute Volume）
Minute Volume
VT（Tidal Volume）
Tidal Volume
Freq （Frequency）
Frequency
Ppeak
Airway peak pressure
PEEP
PEEP
C
Dynamic lung compliance
Tinsp
Inspiration time
TiP
Holding time（Platform time、Inhalation platform）
Sigh
Sigh time
Pc
Pressure control
Ps
Pressure support
Ptr
Pressure trigger
Ftr
Flow trigger
Flow
Flow
Pcon
Alarm of Continuous airway pressure

3
Picture, sign, term and abbreviation
Remarks
Tapn
Apnoea time
Nebulizer
Nebulizer
Paw—t
Waveform of airway pressure and time
Flow—t
Waveform of flow and time
Power
Power
Off
On
O2%
O2concentration adjustment
O2
oxygen
Air
Air
Vmax
Maximum volume
BTPS
body temperature and pressure-saturated
Bpm
Beat per minute （Unit for frequency ）
S
Second （Unit for time）
L
Liter（Unit for capability）
mL
Milliliter（Unit for capability）
L/min
Liter per minute（Unit for volume）
DC
Direct current
hPa
Hpa（Unit for pressure）
kPa
kPa（Unit for pressure）
MPa
MPa（Unit for pressure）
cmH2O
Centimeter water column（Unit for pressure）
V
Voltage（Unit for voltage）
A
Ampere（Unit for current）
Hz
HZ（Unit for frequency）
VA
VA（Unit for power）
db(A)
Decibel（Unit for noise）
℃
Celsius（Unit for temperature）

4
Safety item
“
△
!
“Note:
!Please read the operation manual carefully before operation, assemble, operate, and maintain
the machine in strict accordance with the manual.
!Please refer to the chapter of Installation and connection of expiratory flow sensor sampling
tube and expiratory valve and O2sensor in this manual when install and connect the
exhalation flow sensor sampling tube and exhalation valve and O2sensor.
!Please refer to the chapter of Clearance, Sterilization and Maintenance when do sterilization
and clearance.
!The storage and working condition, power, and gas should comply with the requirement in this
manual.
!All the power lines, tubes, and steeve should be disassembled before any transportation and
move.
!Keep the ventilator stable and balance during operation, transportation or move.
△
!
Warning
!Check the safety performance of the machine before using to ensure that it is in good working
conditions. Refer to the chapter of Check before use.
!If the alarm function is not working, do not use this machine. Otherwise, it may cause the injury
or even death of the patient, or damage of the machine.
!If there is alarm during the operation, safeguard the patient firstly, then check immediately to
fix the fault.
!This machine can only be operated by special qualified personnel after training.
!This machine can only be used under close observation. Though clinical safety has been fully
considered in the design of this machine, the operator should not neglect the observation of
the machine status and the patient. Only in this way can fault be detected and corrected in
time.
!The gas for this machine is O2and Air.
!Never use the antistatic breathing tube and facemask. It may be cause inflammation if use this
kind of breathing tube and face mask near the high frequency electric operation equipments
!Be careful when arranging the respiration circuit (screwed pipe) and cables to avoid tangle or
suffocating the patient.
!Do not move, cover or repair the machine during the operation.
!Please keep the distance between the Back panel of the ventilator and wall or big barrier at
least 0.5 meter to ensure the normal ventilation of the compressor. （if equipped with air
compressor）
!Never use this machine in environment with inflammable or explosive gas.
!Never use this machine in environment of Nuclear Magnetic Resonance
!Never use this machine for newborn babies
!Do not add additional accessories, part or component to the breathing system, or the pressure
grads between the breathing system and patient will go up, which will affect the safety of the
patient.
!Do regular resection (Refer to the chapter for Maintenance) and replacement (Refer to the
replacement of battery) of the battery.
!The medical equipment having similar or the same looks but different software and other

5
internal functions(including operation of alarm default and other alarm feature ) may cause
confusion between the operator.
!As using different warning settings and using the same or similar equipment at all the
independent area, there may be potentially dangerous.
!Do not disassemble the ventilator without the authorization from Nanjing Super Star Medical
Equipment Co., Ltd. If the user needs to repair,，This machine can only be operated by
special qualified personnel after training. When necessary, our company can provide the
necessary information
!In order to avoid the risk of electric shock, the equipment should be connected only to a supply
network with protect earth.
Claim
!Monitoring, alarm, and guard function for S1100 ventilator:
——Measurement and control for FiO2
——Measurement and control for MV
——Measurement and control for Tidal volume
——Measurement and control for Frequency
——Measurement and control for ventilation pressure
——Measurement and control for PEEP
——Measurement for Dynamic lung compliance
——Measurement and control for continuous pressure
——Limitation for airway peak pressure
——Limitation for peak pressure of input gas
——Gas failure alarm
——Airway pressure alarm (Beyond the upper or low level )
——Minute ventilation alarm (Beyond the upper or low level )
——O2concentration alarm (Beyond the upper or low level )
——Continuous pressure alarm
——Apnoea alarm
——Low oxygen or air supply pressure alarm
——AC failure alarm
——Low voltage of battery alarm
——Alarm when the temperature of compressor pump is too high （if equipped with air
compressor）.
!According to the national standard IEC 60601-2-12, the humidifier, CO2monitor, oximeter and
O2monitor should meet the following standards or be registered in national or provincial
medical administration.
——Humidifier should meet the standard of ISO 8185；
——CO2monitor should meet the standard of ISO 9918
——Oximeter should meet the standard of ISO 9919
——O2monitor should meet the standard of ISO 7767
!According to the national standard IEC 60601-2-12, breathing circuit equipped on ventilator
should meet the standards ISO 5367.

6
Function
Ventilation mode
——IPPV
——A/C
——PCV
——SIMV
——SPONT/ CPAP
——PSV
——SIGH
——MANU
Performance
!Electrical controlled and gas driven
!For Child and Adult
!Color TFT screen
!Function of volume control and pressure limit
!More ventilation mode
!More ventilation function
!More alarm function
!Compliance compensated function
!More accurate and stable O2and Air blender
!Internal battery. The battery will work when the AC fails.
!May be equipped with air compressor。
Intended use
S1100 ventilator is applied to various medical institution and used for cardiopulmonary cerebral
resuscitation respiratory support, acute respiratory insufficiency or oxygenation function disorder
caused by various causes, others need ventilator treatment. It applies for 18 ～80 years old
patients.
Adaption disease
!Cardiopulmonary cerebral resuscitation respiratory support
!Acute respiratory insufficiency or oxygenation function disorder caused by various causes
!Intraoperative and postoperative respiratory support
!Others need ventilator treatment
Contraindication
As to the ventilator there is no absolute contraindication. But the operator should pay attention to
the relevant contraindication of mechanical ventilation. For example the patient with grave lung
disease should not use or use ventilator with great caution.

7
EMC Information
Important Notice
!The S1100 Ventilator meets the requirement of electromagnetic compatibility in IEC60601-1-2.
!The user needs to install and use according to electromagnetism compatibility information
which is attached with it.
!Portable and mobile RF communication devices may influence S1100 performance, so S1100
should be kept away from them during using.
!Guidance and manufacturer’s declaration stated in the appendix.
Warning:
!S1100 Ventilator should not be used adjacent to or stacked with other equipment and that if
adjacent or stacked use is necessary, S1100 should be observed to verify normal operation in
the configuration in which it will be used.
!Class A equipment is intended for use in an industrial environment. S1100 may be potential
difficulties in ensuring electromagnetic compatibility in other environments, due to conducted as
well as radiated disturbances.

8
Table 1
Guidance and manufacturer’s declaration –electromagnetic emissions
The S1100 Ventilator is intended for use in the electromagnetic environment specified below. The
customer or the user of the SECP-II should assure that it is used in such an environment.
Emissions test Compliance Electromagnetic environment - guidance
RF emissions
CISPR 11 Group 1
The S1100 uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not
likely to cause any interference in nearby electronic
equipment.
RF emissions
CISPR 11 Class A
The S1100 is suitable for use in all establishments other
than domestic and those directly connected to the
public low-voltage power supply network that supplies
buildings used for domestic purposes.
Harmonic emissions
IEC 61000-3-2 Class A
Voltage fluctuations
/ flicker emissions
IEC 61000-3-3
Complies

9
Table 2
Guidance and manufacturer’s declaration – electromagnetic immunity
The S1100 Ventilator is intended for use in the electromagnetic environment specified below.
The customer or the user of the S1100 should assure that it is used in such an environment.
Immunity test IEC 60601 test
level Compliance level Electromagnetic environment – guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2

±6 kV contact

±8 kV air
± 6 kV contact
± 8 kV air
Floors should be wood, concrete or
ceramic tile. If floors are covered with
synthetic material, the relative humidity
should be at least 30 %.
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
±2 kV for power
supply lines
Mains power quality should be that of a
typical commercial or hospital
environment.
Surge
IEC 61000-4-5
± 1 kV line(s) to
line(s)
± 2 kV line(s) to
earth
± 1 kV line(s) to
line(s)
± 2 kV line(s) to
earth
Mains power quality should be that of a
typical commercial or hospital
environment.
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
<5 % UT
(>95 % dip in UT)
for 0,5 cycle
40 % UT
(60 % dip in UT)
for 5 cycles
70 % UT
(30 % dip in UT)
for 25 cycles
<5 % UT
(>95 % dip in UT)
for 5 s
<5 % UT
(>95 % dip in UT)
for 0,5 cycle
40 % UT
(60 % dip in UT)
for 5 cycles
70 % UT
(30 % dip in UT)
for 25 cycles
<5 % UT
(>95 % dip in UT)
for 5 s
Mains power quality should be that of a
typical commercial or hospital
environment. If the user of the S1100
requires continued operation during
power mains interruptions, it is
recommended that the S1100 be
powered from an uninterruptible power
supply or a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields
should be at levels characteristic of a
typical location in a typical commercial
or hospital environment.
NOTE UT is the a.c. mains voltage prior to application of the test level.

10
Table 3
Guidance and manufacture’s declaration – electromagnetic immunity
The S1100 Ventilator is intended for use in the electromagnetic environment specified below. The
customer or the user of S1100 should assure that it is used in such an environment.
Immunity test IEC 60601 test level
Complianc
e level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
outside ISM bands a
10 Vrms
150 kHz to 80MHz
in ISM band a
10 V/m
80 MHz to 2.5 GHz
3 V
3V
10 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the S1100,, including cables, than the
recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
Where Pis the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and dis the recommended separation
distance in metres (m). b
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,cshould be less than the compliance
level in each frequency range.d
Interference may occur in the vicinity of
equipment marked with the following
symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects and people.
aThe ISM (industrial, scientific and medical) bands between 150kHz and 80MHz are 6.765 MHz to
6.795 MHz; 13.553MHz to 13.567MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.
bThe compliance levels in the ISM frequency bands between 150 kHz and 80MHz and in the
frequency range 80MHz to 2.5GHz are intended to decrease the likelihood that mobile/portable
communications equipment could cause interference if it is inadvertently brought into patient
areas. For this reason, an additional factor of 10/3 is used in calculating the recommended
separation distance for transmitters in these frequency ranges.
cField strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast
cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due
to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured
field strength in the location in which the S1100 is used exceeds the applicable RF compliance
level above, the S1100 Ventilator should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or
relocating the S1100.
dOver the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

11
Table 4
Recommended separation distances between
portable and mobile RF communications equipment and the S1100 Ventilator
The S1100 Ventilator is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the S1100 Ventilator can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the S1100 Ventilator as recommended below,
according to the maximum output power of the communications equipment.
Rated
maximum
output power
of transmitter
(W)
Separation distance according to frequency of transmitter
(m)
150 kHz to 80 MHz
outside ISM
bands
150 kHz to 80 MHz
in ISM band
80 MHz to 800
MHz
800 MHz to 2 .5
GHz
0.01 0.12 0.12
0.12
0.23
0.1 0.37 0.37
0.37
0.73
1
1.20 1.20
1.20
2.30
10 3.69 3.69
3.69
7.27
100 12.00 12.00
12.00
23.00
For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in metres (m) can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to
the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 The ISM (industrial, scientific and medical) bands between 150 kHz and 80MHz are 6.765
MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66MHz to
40.70MHz.
NOTE 3 An additional factor of 10/3 is used in calculating the recommended separation distance for
transmitters in the ISM frequency bands between 150kHz and 80MHz and in the frequency range
80MHz to 2.5GHz to decrease the likelihood that mobile/portable communications equipment could
cause interference if it is inadvertently brought into patient areas.
NOTE 4 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.

12
The main structure and working principle for the ventilator
△
!
Note：Please refer to the manual of humidifier to learn the main structure and working
principle of the humidifier.
Main unit
Structure
The S1100 ventilator is made up of main unit (including Ventilation parameters setting, monitoring,
control and display system, Gas source input port, Patients connector, Oxygen concentration
monitoring and O2and air blending system) and Air compressor（optional）, rack (the overall
appearance is shown in figure 1)
(with compressor)

13
(without compressor)
1Parameter display screen 2 panel 3 O2and Air blender adjusting knob
4 Humidifier Bracket 5 Main frame 6 Castor
7 Air Compressor 8 Inhalation port 9 nebulization port
10 Exhalation port 11 Air input port 12 O2input port
13 compressor fuse box 14 ～220V power input socket/Fuse box
15 Auxiliary socket 16 Auxiliary socket fuse box
17 Ventilator input power socket/Fuse box 18 Starting switch
19 Earthing terminal 20 Backup battery cover
Fig 1 the structure of ventilator

14
Working Principle
Fig 2 Graph for working principle
The gas source passes O2and air blender，then respectively enters nebulier controlling valve,
flow controlling valve and exhalation controlling valve.
During inhalation, flow controlling valve and exhalation controlling valve open, while the exhaling
valve closes. O2and Air mixture will be supplied to patient by passing flow controlling valve and
flow sensor 1, and flow controlling valve will adjust the tidal volume delivered to patient.
During exhalation, flow controlling valve and exhalation controlling valve close, while the exhaling
valve opens. The exhaling gas will be delivered to atmosphere by passing exhaling valve and flow
sensor 2.
Nebulization function start up，nebulizer controlling valve opens during inhalation and it closes
during exhalation.
The micro computer panel will work under the ventilation mode and parameters set on the
operation panel, and process airway pressure and tidal volume sampled from flow and pressure
sensor, then control inhaling time, exhaling time, breathing rate, and tidal volume, and display the
monitored ventilation parameters on the screen.
When the monitored ventilation parameters are beyond the set alarm limit, the micro computer
panel will activate the sound and visible alarm.
When the airway pressure reaches to the set pressure of safety valve (Under 12.5kPa), the safety
valve will be open to release the pressure to avoid excessive airway pressure.
Under the fault condition, patients breathe spontaneously, emergency air suction valve will be

15
open for inhalation, so that the patient can breath the air from atmosphere.
Air compressor (if equipped with air compressor)
Structure
1 Timer 2 Output gas pressure gauge 3 Run indicator
4 Alarm indicator 5 Switch 6 Input gas filter net 7 Output gas port
Fig 3 air compressor structure
Working Principle
The gas enter the compressor thought filter and muffler, and is compressed into the high
temperature gas of 400kPa.Then the gas will pass the cooler, filter and oil and mist separator for
first water and impurity elimination. The second water elimination will be done by membrane drier,
then the gas will enter the ventilator.
O2and Air blender
Working principle
The O2and Air blender is consist of balance device, O2concentration adjusting device. The
balance device will balance the pressure of air and O2whose differential pressure is less than
100kPa,then sent them to O2concentration adjusting device. In O2concentration adjusting device,
the change of two-way value position can adjust ratio of air and O2mixture.