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150-008-01-IADO © 2014, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | www.wsps.ca
Powered air purifiers can be a mechanical filter, a chemical cartridge or both. They may be preferred
for excessively high concentration of dust or pesticides, but they cannot be used in oxygen-limited
environments.
Air supplied respirators – two types of air supplied respirators are approved for use in oxygen deficient
areas, such as manure pits, silos containing silo gas, air-tight silos or bins containing high-moisture grain.
They are hose mask with blower and emergency air supply and the self-contained breathing apparatus.
These respirators all offer effective protection against toxic dust. The primary differences are the quality
of fit, the length of time the protection will be provided and the cost.
Notes:
tailgate talks – resPiratory Hazards in agricUltUre
wsps.ca
