Assigned protection factors for respirators for use by licensees shall be in accordance with Table 4095.1 below:

Table 4095.1 Assigned Protection Factors (APF) for Respirators

Operating Mode

Assigned Protection Factors

I. Air purifying respirators (Particulate only) Filtering faceplate disposableu ----------------
Facepiece, halfv----------------------------------
Facepiece, full-----------------------------------
Facepiece, half-----------------------------------
Facepiece, full-----------------------------------
Helmet/hood-------------------------------------
Facepiece, loosefitting--------------------------

Negative Pressure-------------------
Negative Pressure-------------------
Negative Pressure-------------------
Powered air-purifying respirators-
Powered air-purifying respirators-
Powered air-purifying respirators-
Powered air-purifying respirators-

( 1u )
10
100
50
1000
1000
25

II. Atmosphere supplying respirators (Particulate, gases, and vaporsw)

1: Air-line respirator:
Facepiece, half--------------------------------
Facepiece, half-------------------------------
Facepiece, half--------------------------------
Facepiece, full--------------------------------
Facepiece, full---------------------------------
Facepiece, full---------------------------------
Helmet/hood-----------------------------------
Facepiece, loosefitting------------------------
Suit----------------------------------------------

2: Self-contained breathing apparatus (SCBA):
Facepiece, full---------------------------------
Facepiece, full---------------------------------
Facepiece, full---------------------------------
Facepiece, full-----------------------------

Demand------------------------------
Continuous Flow--------------------
Pressure Demand--------------------
Demand------------------------------
Continuous Flow--------------------
Pressure Demand--------------------
Continuous Flow--------------------
Continuous Flow--------------------
Continuous Flow--------------------


Demand------------------------------
Pressure Demand-------------------
Demand, recirculating-------------
Positive Pressure Recirculating---

10
50
50
100
1000
1000
1000
25
( 1x )


y100
z10,000
y100
z10,000

III. Combination respirators:

Any combination of air-purifying and atmosphere-supplying respirators

Assigned protection factor for type and mode of operations as listed above

Source. #8393, eff 7-23-05; ss by #10492, eff 12-24-13; ss by #13928, eff 4-26-24