A respiratory protection device that consists of a supply or a means of respirable air, oxygen, or oxygen-generating material which is carried by the wearer.
Portable air (not oxygen) tanks with regulators which allow firefighters to breathe while in toxic smoke conditions. Usually rated for 30 minutes of service. Used primarily on fires involving structures or hazardous materials. synonym: Air Pack see also: Respirator
A unit designed to provide the wearer with a respirable atmosphere independent of the ambient air. The air supplied by gas cylinder which is carried on the back of the wearer.
respiratory device that provides complete protection against toxic vapors/gases and oxygen deficient atmospheres. The wearer is independent of the surrounding atmosphere because he/she is breathing with a system that is portable and admits no outside air.
An atmosphere supplying respirator for which the breathing air source is designed to be carried by the user.
For the purpose of this manual, a unit designed to allow entrance into oxygen deficient or highly contaminated atmospheres.
A respirator designed to protect the wearer from the inhalation of harmful atmospheres by providing a clear air source carried by the wearer.
A self-contained supply of oxygen used during rescue work from coal mine fires and explosions; same as SCSR (self-contained self rescuer).
a device which supplies grade d breathing air from a pressurized source carried by the user.
Breathing apparatus with full facepiece and an independent supply of air; abbreviated.