Hawaii Administrative Rules › Title 11 - DEPARTMENT OF HEALTH › Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS › Chapter 45 - RADIATION CONTROL › Subchapter 4 - STANDARDS FOR PROTECTION AGAINST RADIATION › Appendix A of Subchapter 4 - Protection Factors for Respirators[1] (2/2/93)

Current through June, 2024
Protection
								Factors4
Tested & Certified
								Equipment
Description2
								Administration
Modes3
Particulates
Particulates
National
								Institute for Occupational Safety and tests for permissibility
I. AIR-PURIFYING
								RESPIRATORS6
Facepiece,
								half-mask7
NP
10
30 CFR 11, Subpart K.
Facepiece, full
NP
50
Facepiece, half-mask full, or
								hood
PP
1000
II. ATMOSPHERE-SUPPLYING
								RESPIRATORS
1. Air-line respirator
Facepiece,
								half-mask
CF
1000
30 CFR 11, Subpart
								J.
Facepiece, half-mask
D
5
Facepiece, full
CF
2000
Facepiece, full
D
5
Facepiece, full
PD
2000
Hood
CF
8
Suit
CF
9
10
2. Self-contained breathing apparatus
								(SCBA)
Facepiece, full
D
50
30 CFR 11, Subpart H.
Facepiece,
								full
PD
10,00011
Facepiece, full
RD
50
Facepiece,
								full
RP
5,00012
III.COMBINATION RESPIRATORS
Any combination of air-purifying and
								atmosphere-supplying respirators
Protection factor for type and mode of
								operation as listed above
30 CFR 11, Sec. 11.63(b).
See next page for footnotes.
FOOTNOTES
1. For
				  use in the selection of respiratory protective equipment to be used only where
				  the contaminants have been identified and the concentrations, or possible
				  concentrations, are known.
2. Only
				  for shaven faces and where nothing interferes with the seal of tight-fitting
				  facepieces against the skin. Hoods and suits are excepted.
3. The mode symbols are defined as follows:
CF = continuous flow
D = demand
NP = negative pressure, that is, negative phase during
					 inhalation
PD = pressure demand, that is, always positive
					 pressure
PP = positive pressure
RD = demand, recirculating or closed circuit
RP = pressure demand, recirculating or closed
					 circuit
4.
a. The protection factor is a measure of the
				  degree of protection afforded by a respirator, defined as the ratio of the
				  concentration of airborne radioactive material outside the respiratory
				  protective equipment to that inside the equipment, usually inside the
				  facepiece, under conditions of use. It is applied to the ambient airborne
				  concentration to estimate the concentrations inhaled by the wearer according to
				  the following formula:
Concentration inhaled = Ambient airborne concentration /
					 Protection factor
b. The
				  protection factors apply:
(i) Only for
				  individuals trained in using respirators and wearing properly fitted
				  respirators that are used and maintained under supervision in a well-planned
				  respiratory protective program.
(ii) For air-purifying respirators only when
				  high efficiency particulate filters, above 99.97% removal efficiency by
				  thermally generated 0.3
.
m dioctyl
				  phthalate (DOP) test or equivalent, are used in atmospheres not deficient in
				  oxygen and not containing radioactive gas or vapor respiratory
				  hazards.
(iii) No adjustment is to
				  be made for the use of sorbents against radioactive material in the form of
				  gases or vapors.
(iv) For
				  atmosphere-supplying respirators only when supplied with adequate respirable
				  air. Respirable air shall be provided of the quality and quantity required in
				  accordance with the National Institute for Occupational Safety and Health and
				  the Mine Safety and Health Administration certification described in 30 CFR 11.
				  Oxygen and air shall not be used in the same apparatus.