the test conductor shall spray the Threshold Check Solution into the enclosure. This Nebulizer shall be clearly marked to distinguish it from the fit test solution nebulizer. The Threshold Check Solution is prepared by adding 13.5 milligrams of Bitrex to 100...
The mask needs to conform to the shape of the user’s face to create a complete seal so that not even a trace of airborne irritants can get inside the mask. The real workhorses of respirator masks are the filters. These are attached to the respirators and they are the only way that ...