Positive pressure systems afford a higher level of protection than face masks alone, as the user is not dependent on the integrity of the facepiece seal to prevent exposure.
You will need to decide on high or low pressure for your air source.
High pressure typically refers to using your shop air compressor with additional filtration and pressure regulation (#2806 Filter Panel).
Low pressure requires the purchase of a dedicated low pressure air pump.
• NIOSH/MSHA approved, and ideal for welding, spray painting, chemical handling, and many other applications
• Choose a half facepiece for fitting under welding shields and other safety gear