TM55-1500-345-23
Air Flow
(CFM/Sq Ft Open
Face Area, FPM)*
Facility
Respirator
Walk-in room or
deep booth
Airline
(crossdraft up
to 50 FPM)#
<75
(crossdraft up
to 100 FPM)
<125
Airline
>75
Chemical Cartridge
(crossdraft up
to 50 FPM)
>125
(crossdraft up
to 100 FPM)
Chemical Cartridge
Spray cabinets (less than
4 sq ft. open face area)
<150
Airline
(crossdraft up to 100 FPM)
>150
Chemical Cartridge
Spray cabinet (more than 4 sq ft
open face area)
(crossdraft up to 100 FPM)
<125
Airline
>125
Chemical Cartridge
Confined spaces
Airline
(for example inside or under-
neath vehicles or other equipment)
Outdoor application
Brush or roller application
Chemical Cartridge
Spray application
Airline
No mechanical
Airline
Indoor application
ventilation
Cubic feet per minute per square foot of open face area (CFM/sq ft) is equivalent to feet per
minute (FPM). CFM is a volumetric flow rate; FPM is a linear flow rate. Values listed are the
minimum allowed.
(< less than, > greater than)
Respirator -- Airline means NIOSE/MSEA-approved Type C positive pressure device with a
+
full facepiece.
-- Chemical cartridge means a NIOSE/MSEA-approved paint spray respirator with organic
vapor cartridge(s), paint prefilter(s), full facepiece.
-- Chemical cartridges and paint spray prefilters shall be changed with appropriate replace-
ment elements based on the following:
-- Daily
-- When breakthrough (solvent odor) is detected by the wearer
-- When breathing resistance is too great
Crossdrafts greater than 100 FPM should not be permitted.
#
