VALVED DUST/MIST RESPIRATORThe 3M 9322 respirator is for use in hot and humid environments and where FFP2S protection is required.
VALVED DUST RESPIRATORThe 3M 9312 respirator can be used in many hot and humid environments where the application requires FFP1S level dust protection.
DUST/MIST/FUME RESPIRATORThe 3M 9332 respirator is used in most industrial applications where high level protection (FFP3S) against solids and water-based mists is required.