Respiratory Protection

1. Because APRs are negative pressure, the _____ seal between the wearer's face and the respirator is critical
4. Respirators are of two general "fit" types
8. Substances such as iron oxide or tin oxide that create minimal pulmonary ______
9. Pulmonary —— reaction is caused by such substances as silicates
10. Half-face and Full-face respirators use filtering _______
13. Type of masks that are similar to full-face respirators, but use canisters instead of cartridges
15. _______ protect against respiratory hazards
18. Gaseous contaminants such as nitrogen dioxide, phosgene, and arsenic trichloride are known as ________
19. APRs are normally designed to be _______ pressure respirators-they are powered by the wearer's lungs
20. Maximum Use Concentration (Abbrv.)
21. Do not use Chemical Cartridges if the contaminants, their concentrations, or the oxygen level is _______

1. With tight-fitting respirators employees must avoid ____ hair between the respirator face piece seal amd the face
2. Always properly ______ and maintain your SCBA before, during, and after use
3. End of Service Life Indicator (abbrv)
5. The only type of personnel that should make repairs to a respirator
6. _____-user respirators must be cleaned as often as necessary to remain sanitary
7. A respiratory inlet covering that completely covers the head and neck and may also cover portions of the shoulders and torso
11. Systemic _____ enter the body through the lungs as a gas or vapor but affects other parts of the body
12. The route of entry that toxicologists consider the most important
14. Composite cylinders have a limited ______ life
16. OSHA considers any atmosphere with less than 19.5% of this to be ______ deficient
17. Self Contained Breathing Apparatus (abbrv.)