This product is no longer supported.
Choice of two systems to enhance
workers’ mobility by providing an air
source that can be transported within a
work site any time an air-line device is
Systems are compatible with MSA’s
complete line of cylinders,providing
versatility for users.
Integral check valve on both systems
allows air supply to be switched between
air sources,providing uninterrupted air
flow as a depleted cylinder is replaced
with a fully charged one.
Both systems are designed for use with
pressure-demand supplied-air respirators,
including dual-purpose self-contained
Both systems feature Quick-Disconnect
assembly for ease in connecting air-supply
hoses to the air source.
The Portable Air-Supply Systems
consist of (1) the PortAire
Portable Air-Supply System and
(2) the TransportAire Portable Air
The PortAire Portable
The PortAire System holds two
standard SCBA air cylinders to
provide firefighters, industrial
personnel, confined space workers,
and other wearers of respiratory
protective equipment with a
portable, compressed air source
any time an air-line device is
Designed for use with MSA pressure-
demand supplied-air respirators,
self-contained breathing apparatus
(SCBA), the PortAire System
consists of a compact air-pressure
regulating system housed in
a lightweight,yet durable,
anodized aluminum frame. The
rugged frame protects cylinders,
holds up to 100 feet of air-supply
hose and serves as a carrying
device for user convenience. It
can be easily attached to a twowheel
dolly for even more
When connected to two air cylinders,
the system provides a continuous
supply of respirable air.
During use of the PortAire
System, cylinders can be refilled or changed as required to
provide a long-duration air supply. When one cylinder’s air
supply is exhausted, the device’s integral check valve
allows users to switch over to the second cylinder without
interrupting air flow. The PortAire System also can
supply two users simultaneously.
The PortAire System is designed for use with either two
low-pressure (2216 psig or 3000 psig) or two high-pressure
(4500 psig) cylinders. For added convenience,cylinders
can be refilled without removal from the carrying
frame using the optional Quick-Fill System accessory,
which eliminates the need for cylinder changeover. The
Quick-Fill System also allows users to connect to a cascade
system or high-pressure compressor,providing an
even longer-duration air supply.
The TransportAire™ Portable Air-Supply
The TransportAire System consists of an impact-resistant
handle with nylon straps that fit around an MSA 30-,45-,
or 60-minute low-pressure (2216 psig or 3000 psig) or
high-pressure (4500 psig) cylinder purchased separately.
The system is designed for exclusive use with MSA supplied-
air respirators equipped with a dual-supply option.
A major advantage of the dual-supply option is improved
mobility,because workers need not remain tethered to a
single air-supply hose throughout a work period.To
accommodate this option, the dual-supply manifold on
MSA respirators features two air-inlet ports: a MAIN inlet
and a DUAL-SUPPLY inlet. Both are used to deliver respirable
air to the user whenever connected to a pressurized
With the dual-supply capability,users can connect from
one pressurized continuous air source to another without
losing continuity of air flow. After the first length of airsupply
hose has reached its limit, the wearer simply plugs
into a second approved air source and disconnects from
the first.This technique is known as “leap-frogging,”
because it gives workers the ability to move from station
to station without disrupting the supply of air.
Whether a worker is using the “MAIN” inlet of the manifold,
the “DUAL-SUPPLY” inlet, or both inlets
simultaneously, the respirator will provide supplied-air
respiratory protection as long as the user remains connected
to one of the two air sources.
With the TransportAire System connected to the DUALSUPPLY
or MAIN inlet of the manifold,a worker can carry
the portable air supply to a location where the second air
source is available for longer-term use. After connecting
the second air source into the open inlet of the manifold,
the user can disconnect the TransportAire System and
keep it available until it is time to exit the area.