NIOSH – Approval, Cautions & Limitations
NIOSH Approval
The 3M™ Versaflo™ Powered Air Purifying Respirator TR-300 Assembly is one component of a NIOSH approved
respiratory system. Refer to the User Instructions and/or the NIOSH approval label provided with the TR-300 for a
listing of components that can be used to assemble a complete NIOSH approved respirator system or contact 3M
Technical Service.
NIOSH Cautions and Limitations
A - Not for use in atmospheres containing less than 19.5 percent oxygen.
B - Not for use in atmospheres immediately dangerous to life or health.
C - Do not exceed maximum use concentrations established by regulatory standards.
F - Do not use powered air-purifying respirators if airflow is less than four cfm (115 lpm) for tight fitting facepieces or
six cfm (170 lpm) for hoods and/or helmets.
H - Follow established cartridge and canister change schedules or observe ESLI to ensure that cartridge and canisters
are replaced before breakthrough occurs.
I - Contains electrical parts that may cause an ignition in flammable or explosive atmospheres.
J - Failure to properly use and maintain this product could result in injury or death.
L - Follow the manufacturer's User's Instructions for changing cartridges, canister and/or filters.
M - All approved respirators shall be selected, fitted, used, and maintained in accordance with MSHA, OSHA, and other
applicable regulations.
N - Never substitute, modify, add, or omit parts. Use only exact replacement parts in the configuration as specified by
the manufacturer.
O - Refer to User's Instructions, and/or maintenance manuals for information on use and maintenance of these respirators.
P - NIOSH does not evaluate respirators for use as surgical masks.
OPERATING INSTRUCTIONS
Unpacking
Inspect the package contents for shipping damage and ensure all components are present. The product should be
inspected before each use following the procedures in the Inspection section of these User Instructions.
Assembly
Battery Pack
The TR-300 PAPR assembly is not intrinsically safe. Do not use in flammable or explosive atmospheres. Doing
so may result in serious injury or death.
Always correctly use and maintain the lithium ion battery packs. Failure to do so may cause fire or explosion or
could adversely affect respirator performance and result in injury, sickness, or death.
a. Do not charge batteries with unapproved chargers, in enclosed cabinets without ventilation, in hazardous
locations, or near sources of high heat.
b. Charge in an area free of combustible material and readily monitored.
c. Do not immerse.
d. Do not use, charge, or store batteries outside the recommended temperature limits.
Refer to the 3M™ Versaflo™ Power Air Purifying Respirator TR-300 Chargers and Battery Packs User Instructions for
additional information on proper battery pack use and maintenance. Battery packs should be charged immediately and
fully upon receipt and after each use.
Charge the battery pack
1. Inspect battery pack initially and prior to each charge cycle. If cracks or damage to the case is noted do not charge
the battery pack. Properly dispose of the battery pack and replace.
2. Place chargers in a cool, well ventilated location free of particulates or other airborne contamination. Charge in an
area free of combustible material and readily monitored.
3. Power source:
TR-341N Single Station Battery Charger:
° Insert the battery pack into the TR-340 charging cradle by sliding the back end of the battery pack in first. Push
down to click the front end into place (Fig. 1).
° Insert the TR-941N power cord into the cradle (Fig. 1a).
TR-944N 4-Station Battery Charger:
° Insert the TR-340 into one of the charging ports on the TR-944N and slide back to lock into place (Fig. 1b).
° Insert the battery pack into the TR-340 cradle as described above. (NOTE: The TR-941N power cord is not used with
the TR-340, when the 4 Station Charger is used.) Ensure the power cord supplied with the TR-944N kit is plugged
into the 4 station base. You may charge any combination of up to 4 TR-330 or TR-332 battery packs simultaneously.
NOTE: The TR-340 and TR-944N do not use the same power cord. Use only the cord supplied with your
charger kit.
W WARNING
4
2
1
Fig. 1
Fig. 1a
4. Plug the power cord into an AC power source (100-240V). Charging will begin. Refer to Table 1 in the Specifications
section for a list of charger LED displays and meanings.
5. Battery pack removal (Fig. 2):
° Release battery pack from cradle – press blue release tab on battery pack and lift out.
The TR-340 can remain attached to the TR-944N if desired. To release the cradle from the base – press down on
the oval release tab on the base, slide cradle forward and lift out. Be careful not to pinch fingers as the cradle slides
forward.
Battery pack charge status is indicated by pressing the indicator button on the top of the battery pack (Fig. 3). Number
of bars illuminated indicates approximate battery pack charge capacity (less than 20% to 100%). Refer to the battery
pack and charger User Instructions for further information on charging, charge status and service life of the battery
packs.
Fig. 2
Install and remove the Battery Pack into the TR-300
To install a charged battery pack, hold the unit so the filter cover faces you (Fig. 4):
° Inspect the hinge and latch on the battery pack and ensure it is clean and undamaged.
° Hook the left edge of the battery pack into its holder on the bottom of the unit (1).
° Push the right side of the battery pack into the motor/blower until the latch fully engages with an audible
click (2).
° Grasp the battery pack and gently pull to confirm pack is locked into place.
To remove the battery pack, hold the unit so the filter cover faces you. Press the battery pack latch and pull the battery
pack down and out.
Fig. 4
2
1
1
Fig. 1b
Fig. 3
5