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Pack of 25 envo® pro N99 filters
let your envo® pro respirator air dry before storing inside the case
and instructions on how to use the components
Each N95 filter remains electrostatically charged until ready to use
Filter Cover Kit for Fit Testing Pack of 25 envo® proThe envo mask Filter Cover Kit for Fit Testing includes two filter covers with adaptors, two plastic tabs, and instructions on how to use the components. The filter covers are for quantitative fit testing use with a PortaCount machine. Each filter cover has a stationary metal probe adapter to connect the PortaCount tube to the envo mask for respirator fit testing. The moveable plastic round tab assists in holding open one area of the exhalation value
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