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Limitations Of Cartridge-Type Respirators A half mask cartridge-type respirator is the most common type used for protection against organic vapors, dusts, mists, acid gases, and fumes. You should be aware, however, that respirators of this type provide adequate protection only under limited conditions. This type of respirator is designed mainly for short-term operations that do not contain atmospheres that are "immediately dangerous to life." To use this type of respirator you must know both the type and concentration of contaminants in the air. Cartridge type respirators are approved only for low concentrations of contaminants in the air, the maximum permitted level of...

Handling Powder Actuated Tools (PATs) Safely A powder-actuated tool (PAT) is a tool that gets its power from an explosive charge. The tool uses the expanding gas from the explosion to drive a fastener into materials such as masonry, concrete, steel, and other hard surfaces. Only trained, competent, and authorized persons are permitted to operate a powder-actuated tool (also known as explosive-actuated tools). The training should be in accordance with the specific tool manufacturer’s criteria. A card verifying training should be issued to the authorized person after training is completed. Unauthorized or improper use of a powder-actuated tool could result in...