How to Properly Fit Respirators
This 5 minute safety training video covers: What is the importance of formal fit test, what are the two types of fit testing, what is the most accurate fit testing, how to properly perform user seal check, how to check the seal using positive pressure, how to check the seal using negative pressure, several types of problems that could affect the seal, what are the proper care of the respirators, what are the other hazardous substances that needs extra cleanup procedures.
It is important to select the right respirator with the best fit stubble, beards or low hair lines can get between the face and mask and create leaks since tight fit is impossible. Some may have to remove facial hair or change hairstyle in order to wear respirator properly, glasses or goggles can also interfere with a good fit because temple bars prevent proper seal of a full face piece mask. Many respirators allow corrective lenses mounted inside the face piece, fit testing is required before initial use annually and whenever a different piece is use. To begin fit testing your respirator put the unit on and tighten the straps so they are not over tight you may have to try on several respirators before you find the one that conforms to your facial structure. Two types of fit testing may be required qualitative and quantitative. In qualitative testing a challenge agent vapor, smoke or aerosol is release around the respirator wearer if the wearer detects the present of the challenge agent through odor, taste or a nasal irritation fit is considered inadequate. Quantitative fit testing measures the actual level of challenge agent of outside and inside the respirator face piece.