Philips AC4372 User manual

AC4372
AC4374
User manual
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2EN
Contents
1 Important 3
Safety 3
2 Yourairpurier 5
Overview (for AC4372) 5
Overview (for AC4374) 6
3 Get started 7
Install lters 7
4 Usetheairpurier 9
Understand the air quality light 9
Switch on 9
Set the sensitivity of the air quality
sensor 10
Select the fan speed 11
Set the timer 11
Activate child lock 11
Night mode 12
5 Cleanyourairpurier 12
Clean the air purier 12
Clean the air quality sensor 12
6 Cleanthepre-lter 13
7 Replacethelters 15
Reset lter lock 17
8 Troubleshooting 18
9 Guarantee and service 19
Order parts or accessories 19
10 Notices 20
Electromagnetic elds (EMF) 20
Recycling 20

3EN
1 Important
Safety
Read this user manual carefully before you use
the appliance, and save it for future reference.
Danger
•Do not let water or any other
liquid or ammable detergent
enter the appliance to avoid
electric shock and/or a re
hazard.
•Do not clean the appliance
with water, any other liquid,
or a (ammable) detergent to
avoid electric shock and/or a re
hazard.
Warning
•Check if the voltage indicated
on the bottom or indicated
at the rear of the appliance
corresponds to the local power
voltage before you connect the
appliance.
•If the power cord is damaged,
you must have it replaced
by Philips, a service center
authorized by Philips, or similarly
qualied persons in order to
avoid a hazard.
•Do not use the appliance if the
plug, the power cord, or the
appliance itself is damaged.
•This appliance is not intended
for use by persons (including
children) with reduced physical
sensory or mental capabilities,
or lack of experience and
knowledge, unless they have
been given supervision or
instruction concerning use
of the appliance by a person
responsible for their safety.
•Children should be supervised
to ensure that they do not play
with the appliance.
•Do not block the air inlet and
outlet, e.g. by placing items on
the air outlet or in front of the
air inlet.
Caution
•This appliance is not a substitute
for proper ventilation, regular
vacuum cleaning, or use of an
extractor hood or fan while
cooking.
•If the power socket used to
power the appliance has poor
connections, the plug of the
appliance becomes hot. Make
sure that you plug the appliance
into a properly connected
power socket.

4EN
•Always place and use the
appliance on a dry, stable, level,
and horizontal surface.
•Leave at least 20cm free space
behind and on both sides of
the appliance and leave at least
30cm free space above the
appliance.
•Do not place anything on top of
the appliance and do not sit on
the appliance.
•Do not place the appliance
directly below an air conditioner
to prevent condensation from
dripping onto the appliance.
•Make sure all lters are properly
installed before you switch on
the appliance.
•Only use the original Philips
lters specially intended for this
appliance. Do not use any other
lters.
•Avoid knocking against the
appliance (the air inlet and outlet
in particular) with hard objects.
•Do not insert your ngers or
objects into the air outlet.
•Do not use this appliance when
you have used indoor smoke-
type insect repellents or in
places with oily residues, burning
incense, or chemical fumes.
•Do not use the appliance near
gas appliances, heating devices
or replaces.
•Always unplug the appliance
after use and before you clean it.
•Do not use the appliance in a
room with major temperature
changes, as this may cause
condensation inside the
appliance.
•To prevent interference, place
the appliance at least 2m away
from electrical appliances that
use airborne radio waves such as
TVs, radios, and radio-controlled
clocks.
•The appliance is only intended
for household use under normal
operating conditions.
•Do not use the appliance in wet
surroundings or in surroundings
with high ambient temperatures,
such as the bathroom, toilet, or
kitchen.
•The appliance does not remove
carbon monoxide (CO) or
radon (Rn). It cannot be used a a
safety device in case of accidents
with combustion processes and
hazardous chemicals.

5
2 Your air purifier
Congratulations on your purchase, and welcome to Philips!
To fully benet from the support that Philips offers, register your product at www.Philips.com/welcome.
Philips VitaShield IPS technology and NanoCloud technology ensures you “Healthy air always”.
VitaShield IPS technology effectively removes pollutants (ultrane particles, allergens, bacteria and
viruses) with size >0.02 micron including bacteria and virus*.
*According to 2008 Microbiological Risk Assessment Report of the World Health Organization
(WHO), the avian inuenza, human inuenza viruses, Legionella, Hepatitus viruses and SARS
coronavirus are larger than 0.02 micron.
Read this user manual carefully before you install and use the unit. Save it for future reference.
Overview (for AC4372)
a
b
c
d
e
Touchscreen control panel
Light sensor
Air quality light
Air quality sensor
Filter 4: HEPA lter AC4154
f
g
h
i
Filter 3: Activated carbon lter AC4153
Filter 2: Multi-care lter AC4151
Filter 1: Pre-lter
Front panel
EN
d
b
c
e f g h i
a

6EN
Overview (for AC4374)
a
b
c
d
Touchscreen control panel
Light sensor
Air quality light
Air quality sensor
e
f
g
Filter 2: Integrated Multi-care lter AC4138
Filter 1: Pre-lter
Front panel
d
b
c
e f g
a

7EN
3 Get started
Installlters
The appliance comes with all lters tted
inside, but you have to remove the packaging
of the lters before you can use the appliance.
Remove all lters, unpack them, and place them
back into the appliance as described below.
Note
•Insert the lters in the correct position.
1 Place your ngers in the recesses of the
side panels and gently pull the top part of
the front panel towards you.
2 Lift the hooks at the bottom of the panel
out of the bottom of the appliance.
3 To remove the pre-lter, grab the two
projections and pull the lter towards you.
4 Remove all the lters from the appliance.
5 Remove all packaging material from the
lters.
6 For AC4372, put the HEPA lter, activated
carbon lter and multi-care lter back into
the purier.

8EN
For AC4374, put the integrated Multi-care lter
back into the purier.
Note
•Make sure that the side with the tag is pointing towards
you.
7 Place the pre-ler in the appliance.
2
1
Note
•Make sure that the side with the two projections is
pointing towards you, and that all hooks are properly
attached to the appliance.
8 To reattach the front panel, insert the
bottom hooks into the bottom of the
appliance rst (1). Then, push the panel
against the body of the appliance (2).

9EN
4 Use the air
purifier
Understand the air quality
light
Color of the air quality
light
Air quality level
Blue Very good
Dark purple good
Purple fair
Red bad
The air quality light automatically goes on when
the purier is switched on.
Note
•The built-in air quality sensor measures the air quality
and automatically selects the appropriate color of
the air quality light. When the air is clean, the color
of the air quality light is in blue. When the air quality
deteriorates, the color of the air quality light changes
from dark purple to red.
Switch on
1 Plug the air purier into the power socket.
» All lights go on from left to right in
cycle, and you hear a beep.Then, the
lights go out again.
» The air quality light shows its 4 colors .
2 Press the button to switch on the
purier.
» The fan speed indicators
(AUTO) and goes on.
Note
•When the purier is switched on, the air quality sensor
will take some time to measure the air quality in the room.
The air quality light changes its color and eventually stays in
the correct color in accordance with the air quality..
3 Press and hold the button for 2
seconds to switch off the purier.
2”
Tip
•The purier has a memory mode. It will recall the
previous settings of your last use.
•If you disconnect the purier from the power supply
after switching off, it will enter the default mode for
next use.The fan speed is (AUTO).

10EN
Set the sensitivity of the air
quality sensor
To meet different needs when you use the
appliance, we are offering you the opportunity
to adjust the sensitivity of the air quality sensor.
There are 3 sensitivity levels:
• standard
• sensitive
• extra sensitive
The pollution sensor is set to extra sensitive.
You can adjust the sensitivity of the air quality
sensor in the following way.
Note
•When it is set to a higher sensitivity, the purier
becomes more allergic to the pollutants in the air.
When the purier is in (AUTO) mode, it is
more likely to choose a higher fan speed than the
standard mode.The air quality sensor selects the
appropriate color of the air quality light in accordance
with the higher sensitivity.
1 Unplug the air purier from the power
socket.
2 Wait for a while before plugging it back
into the power socket.
3 Press the and buttons simultaneously.
» The purier beeps twice and one of
the fan speed indicators ( , or )
ashes to show the current sensitivity
level of the air quality sensor.
Fan speed
indicator
Sensitivity level
extra sensitive (default
sensitivity)
sensitive
standard
4 Press the button to adjust the sensitivity
level of the air quality sensor.
» One of the indicators ( , , or
) goes on to show the preferred
sensitivity level of the air quality sensor.
5 Press and hold the button for 3 seconds
to switch off the purier, and the sensitivity
setting is saved.
Note
•When setting the sensitivity, if no button is pressed in
10 seconds, the purier will skip the sensitivity setting
mode, and maintain the previous setting.

11 EN
Select the fan speed
Note
•After you change the sensitivity, the purier
automatically starts operating at the set sensitivity level
whenever you switch on the purier.
You can select the desired fan speed.
1 Press the button once or more times
to select the desired fan speed ( , ,
, , , or ).
Set the timer
With the timer function, you can let the purier
operate for a set number of hours. When the
set time has elapsed, the purier automatically
switches off.
1 Press the button to activate the timer.
» The timer indicator ( , , or )
goes on.
2 Press the button repeatedly to choose
the number of hours you want the purier
to operate.The corresponding indicator
( , , or ) goes on.
To deactivate the timer function, press the
button repeatedly until the indicator ( ,
, or ) is out.
Activate child lock
You can activate the child lock function.
1 Press and hold the button for
3 seconds to activate the child lock.
» The child lock indicator lights up.
3”
2 Press and hold the button again for 3
seconds to deactivate the child lock.
3”
Note
•When the child lock function is activated, all buttons
are locked except the button.There is no button
sound either.

12EN
Night mode
The purier works in harmony with its
surroundings. The purier automatically switches
to night mode in 3 minutes when the room in
which it is operating becomes dark. All the lights
on the control panel slowly go out.You can
touch any buttons on the control panel during
this period, and the lights go back on. However,
they will go out again in 5 seconds if the purier
is in idle.
If the room becomes bright again for 5
minutes or longer, the purier resumes normal
operation.
5 Clean your air
purifier
Tip
•Before moving the purier, make sure to unplug the
purier rst. You could use the concave of the air
quality light as a handle to lift the purier up.
Note
•Always unplug the purier before you clean it.
•Never immerse the purier in water or any other liquid.
•Never use abrasive, aggressive, or ammable cleaning
agents such as bleach or alcohol to clean any part of
the purier.
•Only the pre-lter is washable. Other air purier lters
are NOT washable nor vacuum cleanable.
Cleantheairpurier
Regularly clean the inside and outside of the
purier body to prevent dust from collecting.
1 Wipe away dust with a soft dry cloth from
the body of the purier.
2 Clean the air inlet and the air outlet with a
soft dry cloth.
Clean the air quality sensor
Clean the air quality sensor every 2 months for
optimal functioning of the purier. Clean it more
frequently if you use the purier in a dusty
environment.

13 EN
Note
•When the humidity level in the room is very high, it is
possible that condensation develops on the air quality
sensor. As a result, the air quality light may indicate that
the air quality is bad even though it is good. In this case
you have to clean the air quality sensor or use one of
the manual speed settings.
1 Clean the air quality sensor inlet and the
air quality sensor outlet with a soft brush.
2 Remove the air quality sensor cover.
3 Clean the air quality sensor, the dust inlet
and the dust outlet with a lightly moistened
cotton swab.
4 Dry them with a dry cotton swab.
5 Reattach the air quality sensor cover.
6 Clean the pre-
filter
Note
•The pre-lter is washable.
•Clean the pre-lter for every two weeks to ensure
optimal functioning of the purier.
•When the pre-lter needs cleaning, the
goes on.
1 Switch off the purier and unplug it.
2”
2 Place your ngers in the recess of the
side panels and gently pull the top part of
the front panel towards you.Then lift the
hooks at the bottom of the panel out of
the top of the purier.
3 To remove the pre-lter, grab the two
projections and pull the lter towards you.

14EN
4 Use a vacuum cleaner or wash the pre-
lter under a running tap. If the pre-lter is
very dirty, use a soft brush to brush away
the dust.
5 Air dry the pre-lter.
6 Put the pre-lter back into the purier.
Attach all hooks properly to the purier.
2
1
7 To reattach the front panel, insert the
bottom hooks into the bottom of the
purier rst (1). Then, push the panel
against the body of the purier (2).
8 Plug the air purier into the power socket
and press the button to switch on the
purier.
9 Press and hold the button for 3
seconds to reset the lter lifetime.
» go off.
3s
Note
•Make sure that the pre-lter is completely dry. If it is still
wet, bacteria may multiply in it and shorten the lifetime
of the pre-lter.
•Make sure that the side with the two projections is
pointing towards you, and that all hooks of the pre-lter
are properly attached to the purier.

15
1 Switch off the purier and unplug it.
2”
2 Place your ngers in the recesses of the
side panels and gently pull the front panel
towards you.Then lift the panel off the
hooks at the bottom of the purier.
3 To remove the pre-lter, grab the two
projections and pull the lter towards you.
4 For AC4372, remove the multi-care lter,
activated carbon lter and HEPA lter
from the purier.
7 Replace the
filters
The indicator of the lter replacement
indicates the respective lters ( , , or )
have to be replaced.
Note
•Lifetime of the lter is based on the volume of air
puried, it may differ from the way of using. In heavily
polluted environment, the lter lifetime may be shorter
than the recommended time.
•If you remove the front panel for lter changing while
the purier is switched on, all lights on the control
panel will be off.
•Once the front panel is placed back to the purier, it
starts to run as its previous status .
•The replaceable lters are not washable nor vacuum
cleanable.
For AC4372
Replace the multi-care lter, the activated
carbon lter, and the HEPA lter when the
respective indicators ( , , and )go on.
For AC4374
Replace the integrated Multi-care lter when
the respective indicator ( )goes on.
This will last for approximately 2 weeks.
On the last day of the 2 weeks, the purier
beeps every 30 minutes to inform you that the
lter needs to be replaced.
Note
•Insert the lters in the correct position.
•For AC4372, make sure you place the lters in the
order of HEPA lter, the activated carbon lter, the
multi-care lter, and then pre-lter.
•For AC4374, make sure you place the lters in the
order of integrated Multi-care lter, and then pre-lter.
•Make sure that the side with the tag is pointing towards
you.
EN

16
For AC4374, put the integrated Multi-care
lter back into the purier.
7 Put the pre-lter back into the purier.
2
1
For AC4374, remove the integrated Multi-
care lter from the purier.
5 Remove all packaging material from the
new lters that need replacement.
6 For AC4372, put the HEPA lter, activated
carbon lter and multi-care lter back into
the purier.
EN

17
Resetlterlock
After 2 weeks of lter replacement alert,
and the lters are still not replaced. Then, the
purier will not work until the lter is replaced
and the lter lock is reset.
The goes on along with the lter
replacement indicators ( , , , and
). All indicators are off except
if it has been activated. , , and buttons
remain active, while and buttons are
deactive. See “Replace the lters” section to
reset the lter lock.
8 To reattach the front panel, insert the
bottom hooks into the bottom of the
purier rst (1). Then, push the panel
against the body of the purier (2).
9 Press and hold the button for 3
seconds to reset the lter lifetime.
» For AC4372: , , , and
go off.
3s
» For AC4374: and go off.
3s
EN

18
The air
quality
does not
improve,
even though
the purier
has been
operating
for a long
time.
• One of the lters has not
been placed in the purier.
Make sure that all lters are
properly installed in the fol-
lowing order, starting with the
innermost lter: For AC4372:
HEPA lter (4), activated
carbon lter (3), multi-care
lter (2) and pre-lter (1). For
AC4374: Integrated Multi-care
lter (2), pre-lter (1).
• The air quality sensor is wet.
The humidity level in your
room is high and causes
condensation. Make sure that
the air quality sensor is clean
and dry (see ‘Clean the air
quality sensor’).
The color
of the air
quality light
always stays
the same.
• The air quality sensor is dirty.
Clean the air quality sensor
(see ‘Clean the air quality
sensor’).
I need
cleaner air
because
I have an
allergy.
You can change the air quality
sensor sensitivity (see 'Set the
sensitivity of the air quality
sensor’) to make the purier
clean the air even better.
The purier
is extra
loud.
• You have not removed all
packaging material from the
lters. Make sure that you
have removed all packaging
material.
• You can change the fan speed
to lower fan speed level.
The purier
still indicates
that I need
to replace
a lter, but I
already did.
Perhaps you did not press the
button to reset the lter
lock properly. Plug in the purier,
press the button and press
and hold the button for 3
seconds.
8 Troubleshooting
This chapter summarizes the most common
problems you could encounter with the purier.
If you are unable to solve the problem with the
information below, contact the Consumer Care
Center in your country.
Problem Possible solution
The , ,
,
indicators
has been on
continuously.
The lter is full. Replace the lter
and reset the purier.
No air
comes out
of the air
outlet.
The purier is not connected
to the power supply. Plug the
purier into the power supply
and switch on.
The fan
speed does
not change
when the
mode
is activated.
In mode, the fan speed
is set to a very low level. If you
want to change the fan speed,
press the button one or
more times to set the desired
fan speed.
The airow
that comes
out of the
air outlet is
signicantly
weaker than
before.
• The pre-lter is dirty. Clean
the pre-lter (see ‘Clean the
pre-lter’).
• You have not removed all
packaging material from the
lters. Make sure that you
have removed all packaging
material.
EN

19
9 Guarantee and
service
If you need information or if you have a
problem, please visit the Philips website at www.
philips.com or contact the Philips Consumer
Care Center in your country (you will nd its
phone number in the worldwide guarantee
leaet). If there is no Consumer Care Centre in
your country, go to your local Philips dealer.
Order parts or accessories
If you have to replace a part or want to
purchase an additional part, go to your Philips
dealer or visit www.philips.com/support.
If you have problems obtaining the parts, please
contact the Philips Consumer Care Center in
your country (you will nd its phone number in
the worldwide guarantee leaet).
EN

20
Recycling
Never dispose your product with other
household waste. Please inform yourself about
the local rules on the separate collection of
electrical and electronic products.The correct
disposal of your old product helps prevent
potentially negative consequences on the
environment and human health.
10 Notices
The making of unauthorized copies of copy-
protected material, including computer
programs, les, broadcasts and sound
recordings, may be an infringement of
copyrights and constitute a criminal offence.
This equipment should not be used for such
purposes.
Electromagneticelds(EMF)
This Philips appliance complies with all
applicable standards and regulations regarding
exposure to electromagnetic elds.
CompliancewithEMF
Koninklijke Philips N.V. manufactures and sells
many products targeted at consumers, which,
like any electronic apparatus, in general have
the ability to emit and receive electromagnetic
signals.
One of Philips’ leading Business Principles is to
take all necessary health and safety measures
for our products, to comply with all applicable
legal requirements and to stay well within
the EMF standards applicable at the time of
producing the products.
Philips is committed to develop, produce and
market products that cause no adverse health
effects. Philips conrms that if its products are
handled properly for their intended use, they
are safe to use according to scientic evidence
available today.
Philips plays an active role in the development
of international EMF and safety standards,
enabling Philips to anticipate further
developments in standardization for early
integration in its products.
EN