3M Versaflo TR-300+ Service manual
3M™ Product Name
Introduction
The 3M™ Versaflo™ TR-300+ Powered Air Purifying Respirator (PAPR) assemblies are designed to be used with certain 3M
breathing tubes and headgear to form a complete respirator system.
Occupational use of respirators must be in compliance with applicable health and safety standards. By United States regulation
employers must establish a written respirator protection program meeting the requirements of the Occupational Safety and
Health Administration (OSHA) Respiratory Protection standard 29 CFR 1910.134 and any applicable OSHA substance specific
standard. OSHA 1910.134 states that employers shall ensure that respirators are inspected, cleaned, and properly stored.
This Technical Bulletin will review the 3M recommended cleaning procedures as well as inspection and storage guidelines for
the 3M™ TR-300+ PAPR assemblies. Refer to the TR-300+ PAPR User Instructions as well as the User Instructions for your
specific headgear for proper assembly, use and limitations of your specific respirator system.
Inspection
The 3M™ TR-300+ PAPR must be inspected before each use to ensure good operating condition. Detach the battery pack,
breathing tube, headgear, filter cover, filter, and prefilter or spark arrestor/prefilter (if used) from the motor/blower. If any
damage, non-functionality, or signal observations as noted below are discovered during the inspection, remove PAPR system
from use and service or replace as appropriate.
Motor/blower
IMPORTANT NOTE
i
Except for removing the filter cover, high efficiency filter, and prefilter or prefilter/spark arrestor the main housing of
the motor/blower cannot be opened and has no user serviceable parts.
• The filter cover must be intact with no cracks or other damage.
• The main housing or case of the motor/blower unit must be intact with no cracks, holes, or other damage. The plastic
should not be discolored, chalky, or soft as these may be signs of deterioration of the housing.
• The area of the motor/blower unit under the filter should be clean and free of contaminants. Contamination noted here may
indicate improper/lack of filter installation or damage to the filter or filter gasket.
• The user interface (motor blower display) should be clean. All LED segments should be lit and clearly visible during initial
start-up of the motor/blower. Excessive build-up of materials on the display may mask a visual alarm from the wearer. The
ON/OFF switch should be intact with no cuts, tears or holes.
• The filter release button should function smoothly and hold the cover securely onto the motor/blower.
• The outlet of the motor/blower (i.e. where the breathing tube attaches) should be inspected for any damage, dirt, debris,
or other contamination which may interfere with proper attachment of the breathing tube.
• The belt loops on the back of the motor/blower should be intact and undamaged.
Filters and Filter Accessories
• The high efficiency (HE) filter should be intact with no cracks, tears or other damage noted. If the filter is wet or appears
heavily loaded with particulate, it should be replaced. Never attempt to clean the filter by any means as intentional
manipulation can easily damage the filter media
Inspection, Cleaning, and Storage Procedures for 3M TR-300+
PAPR Assemblies
Technical Bulletin
Release 1, May 2018
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2 Inspection, Cleaning, and Storage Procedures for 3M TR-300+ PAPR Assemblies Technical Bulletin - Release 1, May 2018
3M Personal Safety Division
• The gasket on HE filter should be firmly attached, clean and intact. There should not be any indentations, tears, rips, or
debris. Replace the filter immediately if any damage is noted.
• The prefilter (if used) should be intact with no tears or cuts. If the filter is wet or appears heavily loaded with particulate, it
should be replaced. Use of the prefilter and frequent change out may help prolong the life of the HE filter and help maximize
battery pack run time.
• The metal spark arrestor/prefilter (if used) should be clean and intact with no damage. Frequent cleaning or change out of
the spark arrestor may help prolong the life of the HE filter and help maximize battery pack run time. The spark arrestor
must be used during hot work, molten metal or spark creating operations.
IMPORTANT NOTE
i
The foam prefilter and the metal spark arrestor/prefilter should not be used simultaneously. Review the TR-300+
PAPR NIOSH approval label to determine which component is approved for use with your specific system
configuration.
Battery Pack
• Inspect the battery pack for cracks, holes or other damage. The plastic case should not be discolored, chalky, or soft. These
may be signs of deterioration of the battery housing.
• Battery pack electrical contacts should be clean and dry with no corrosion.
• Battery pack hinge should be intact with no damage or erosion.
• Battery pack release button should move freely and function properly.
• Attach the battery pack to the motor/blower and gently tug on the battery pack to confirm it properly attaches, and the
battery pack is being held firmly in place.
• When pushing the “Test” button on a fully charged battery pack, all five LEDs should light up. Less than five may indicate
the battery pack is losing capacity and may need to be replaced.
Cleaning
The TR-300+ should be cleaned regularly. Follow the hygiene practices established for your worksite for the specific
contaminants to which the respirator assembly has been exposed.
Motor/blower unit and battery pack
The outer surfaces of the TR-300+ motor/blower assembly and battery pack may be wiped with a soft cloth dampened in a
solution of water and mild, pH neutral detergent.
• Do not use organic solvents, or abrasive cleaners as they may weaken and damage the plastic. Do not allow liquid to enter
outlet port or the motor housing area.
• Do not use compressed air or a vacuum to clean the interior of the motor/blower. This can damage the motor/blower.
• Use caution if cleaning around the battery pack connector pins where the battery seats on the bottom of the motor/blower
unit. Ensure this area and the pins are thoroughly dry before next use or storage.
The motor/blower and battery pack cannot be submerged for cleaning, and cannot be put in a respirator washer. The TR-
300+ PAPR when assembled as a system with headgear and a breathing tube can be worn through a decontamination shower
with a spray angle of up to 60 degrees from vertical.
The TR-300+ PAPR has an International Protection or Ingress Protection (IP) rating of IP53 (EN 60529: 1992). The IP53 rating
indicates the unit is protected against infiltration of dusts and also water falling as a spray from overhead at an angle no more
than 60 degrees on either side of vertical (i.e. up to 120 degrees total spread) that would interfere with normal operation.
When going through a decontamination shower, the TR-300+ PAPR must be in the vertical (upright) position as worn around
the waist. 3M does not recommend a TR-300+ PAPR mounted on the BPK-01 backpack be worn through a decontamination
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Distributed by Best Materials® LLC
3M Personal Safety Division
Personal Safety Division
3M Center, Building 235-2W-70
St. Paul, MN 55144-1000
3M PSD products are
occupational use only.
© 3M 2018. All rights reserved.
3M and Versaflo are trademarks of 3M
Company and affiliates. Used under
license in Canada.
All other trademarks are property
of their respective owners.
Please recycle. Release 1, May 2018
In United States of America
Technical Service: 1-800-243-4630
Customer Service: 1-800-328-1667
3M.com/workersafety
In Canada
Technical Service: 1-800-267-4414
Customer Service: 1-800-364-3577
3M.ca/Safety
shower. It is preferred the unit remain running during the decontamination shower, however, it can be turned off if required.
The motor/blower unit without a breathing tube attached cannot be taken through a decontamination shower as water may
enter the motor/blower unit through the air outlet. If the user removes their headgear, ensure the breathing tube remains
attached and allowed to dangle towards the floor to ensure water does not enter the breathing tube or the motor/blower unit.
After going through the shower ensure all outer surfaces are wiped off before dissembling the system. All system components
should be thoroughly dry before storage or next use.
Filters and Filter Accessories
The HE filter and foam prefilter (if used) cannot be cleaned. Attempts to clean the filters may damage them and in the case of
the HE filter allow particulates to enter the respirator and the user’s breathing zone. Damaged filters or filters beyond their
service life should be replaced.
The metal spark arrestor/prefilter may be cleaned with a mild, pH neutral cleaner. Dry thoroughly before next use or storage.
If the spark arrestor/prefilter cannot be cleaned, it should be replaced.
The metal spark arrestor/prefilter may be cleaned with a mild, pH neutral cleaner. Dry thoroughly before next use or storage.
If the spark arrestor/prefilter cannot be cleaned, it should be replaced.
Storage
Motor/Blower
Store in a clean, contaminant free environment, protected from prolonged exposure to heat, sunlight, radiation and chemicals.
For prolonged storage, the motor/blower should be run at least once per year for 5 minutes to ensure continued proper
lubrication of the motor.
IMPORTANT NOTE
i
Respirators used for emergency purposes must be inspected monthly per OSHA 29CFR1910.134. This should include
running the motor/blower.
Filters and Filter Accessories
HE filter, prefilter, and spark arrestor/prefilter should be stored at temperatures and conditions similar to the motor/blower.
Store the filter and spark arrestors in the original 3M packaging until ready for installation in the motor/blower. HE filters should
not be stored long-term on the motor/blower as this may damage the filter gasket. HE filters have a shelf life of 5 years when
stored in their original packaging.
Battery Pack
Refer to the TR-300+ Chargers and Battery Packs User Instructions and 3M Technical Bulletin - Maintenance and Care of 3M
PAPR Batteries for additional information. Do not use, charge, or store battery packs where temperatures may exceed 122º F
(50º C). Battery packs can be stored on the charger between uses. For storage greater than 30 days, the battery pack should
be stored off charger with approximately 40% charge (as shown by the battery pack fuel gauge). Recharge before next use.
For infrequently used battery packs, to maximize pack life, store battery pack off charger at 40% charge. Approximately every
6 months, fully charge the battery packs and run down to approximately 40% charge before returning to storage.
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