PA30 Series Powered Air-Purifying Respirator
PA3/PA3IS Blower Assembly User Manual
PA3/PA3IS - Principle of Operation
The PA30 Powered Air-Purifying Respirator (PAPR) System is
supplied in six parts:
1. The blower assembly (Part No. PA3/PA3IS) which includes:
PA3BU Blower Unit or PA3ISBU Blower Unit
PA1SB Belt or PA1DB Decon Belt
PA1AFI Air Flow Indicator
2. The battery pack (Part No. PA3BP). One or two packs can be
used. One fully charged pack will power the blower for
approximately four to five hours. For Part No. PA3ISBP, one
battery pack is used, lasting approximately seven hours.
3. The breathing tube, which is available in two different types
and two lengths:
PA1BT Hood Breathing Tube Assembly with Clamp
(Standard Length)
PA1BTXS Hood Breathing Tube Assembly with Clamp
(Short Length)
PA20LFBT Loose Fitting Facepiece Breathing Tube Assembly
(Standard Length)
PA20LFBTXS Loose Fitting Facepiece Breathing Tube Assembly
(Short Length)
4. The cartridges are available in different types for most toxic
contaminants. (See page 6 for a listing of the cartridges.) The
types include High Efficiency particulate only, chemical
cartridges for gases and vapors, and combination cartridges
for gases, vapors and particulates.
5. The hood with headband suspension and/or hard hat, or loose
fitting facepiece. The following hood models may be used with
the PA3BU/PA3ISBU blower unit:
RT1/RT2 Hood with long inner and outer bib
20TJ Hood
20TIC Hood with Inner Bib
20TICH Hood for use with Bullard Hard Hat
20TICS Hood with Taped and Sealed Seams
20SIC Hood with Taped and Sealed Seams
20SICV Hood with Taped and Sealed Seams and CBRN-resistant
PVC lens
20SICH Hood with Taped and Sealed Seams for use with
Bullard Hard Hat
20SICVH Hood with Taped and Sealed Seams and CBRN-
resistant PVC lens for use with Bullard Hard Hat
20TPC Hood with Solvent Resistant Lens and Inner Bib
20TP Hood with Solvent Resistant Lens
20LFM Loose Fitting Facepiece Hood, Medium Size
20LFL Loose Fitting Facepiece Hood, Large Size
6. The Battery Charger:
PA3SMC Quick Charger
PA3GC Gang Charger
PA3ISC Intrisically Safe Quick Charger
PA3ISGC Intrinsically Safe Gang Charger
The blower unit draws in ambient air through the cartridges. The
purified air is blown into the wearer’s hood through the breathing
tube. A flow indicator is provided to check that there is an
adequate volume of air available to the wearer prior to use.
The units are designed for use at temperatures from 10ºF to 120ºF
(-12ºC to 49ºC).
The system is designed to operate at a minimum air flow of
approximately seven cubic feet of air per minute (210 liters per
minute) in the hood under normal use.
The battery pack(s) mount in compartment(s) on the back of the
blower. One fully charged battery pack will power the blower for
approximately four to five hours (PA3BU) or approximately seven
hours (PA3ISBU). Two fully charged packs (PA3BU) will run for
approximately eight hours.
The PA3BU/PA3ISBU is fitted with an alarm which will sound when
voltage is low.
CC20 and RT Series Airline Respirator
NIOSH Approval No. TC-19C-154, Type C and
TC-19C-412, Type C
Most of the same headpieces approved for use with the CC20 and
RT Series of supplied air respirators (SARS) are also approved for
use with the PA30 Series of powered air-purifying respirators.
CC20 and RT Series respirators provide a high level of respiratory
protection and user comfort over long work periods, in a wide
variety of hazardous environments.
The CC20 and RT SAR air flow control devices and other
components are described in the CC20 and RT Series User
Instructions.
Principle o
f Oper
ation
3
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