Safety Talk Air Purifying Respirators Sheet 1 Airborne
Safety Talk - Air Purifying Respirators Sheet 1 – Airborne contaminants TRAINING NATIONAL
Safety Talk - Air Purifying Respirators Sheet 2 – Air purifying respirators TRAINING NATIONAL
Safety Talk - Air Purifying Respirators Sheet 3 – Air supplying respirators provide protection by supplying air to the wearer from a different source than the atmosphere the person is working in. Air or oxygen is supplied either from a compressor, cylinder or air line. They are mainly used for: TRAINING NATIONAL • oxygen deficient atmospheres; • highly toxic atmospheres where air purifying cannot filter the contaminant level below acceptable levels; and • where full face and body protection is also required.
Safety Talk - Air Purifying Respirators Sheet 4 – Disposable respirator masks Class P 1 masks are used for filtering dusts such as silica and asbestos. Class P 2 masks are used for filtering metal fumes. They cannot be used as protection against: -highly toxic dusts; -toxic gases; or -vapours. Check the mask for: -holes in the filter material; -strap tension; and -secure metal nose clip. Check the face seal before using the mask. TRAINING NATIONAL
Safety Talk - Air Purifying Respirators Sheet 5 – Half-face respirator masks Rubber or flexible plastic facepiece Head straps Filter cartridge Filter cartidge Exhalation Valve Half face respirator masks remove particulate and gases by passing the contaminated air through an absorbent material inside the cartridges. The absorbent is charcoal or some other special material. TRAINING NATIONAL
Safety Talk - Air Purifying Respirators Sheet 6 – Filter cartridges Particulate Filter Cartridges CLASS P 1 • Class P 1 - dusts such as silica and asbestos • Class P 2 - metal fumes • Class P 3 - toxic or highly irritant particulate dust Gas type Type K - Ammonia Class 1 Gas Filter Cartridges • Different cartridges are used for different types of gas. • Cartridge colour and label indicate the Absorption capacity gas type. • The higher the class number the greater the absorption capacity. TRAINING NATIONAL
Safety Talk - Air Purifying Respirators Sheet 7 – Half-face respirator mask TRAINING NATIONAL
Safety Talk - Air Purifying Respirators Sheet 8 – Full-face respirator masks are used for protection against highly toxic dusts, vapours and gases such as Hydrogen Cyanide. Full-face protection prevents contaminants being absorbed into the body through the eyes. Full-face respirators use filter canisters which have a greater filtering efficiency and absorption capacity than cartridges. Full-face respirators must be checked and tested in the same way as half-face mask respirators. TRAINING NATIONAL
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