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Which respirators offer NO protection against oxygen deficient environments?
N-95, half/full face, gas, PAPR
Which respirator offers a positive pressure inside the mask via a battery pack?
PAPR
When are air-supplied respirators required?
insufficient oxygen, extreme temperatures, high concentrations of dust, fumes, mists, gases,
vapor
When the oxygen exceeds ?% it creates an oxygen-enriched environment
23.5
What must the worker do each time they don their respirator?
conduct a positive and negative seal check
What are the maintenance steps that must be done to a half or full-face respirator?
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clean, store properly, dry, inspect
What does the P100 of the respirator cartridge remove?
99.97% of particulates to 0.3 microns
PAPR
powered air purifying respirator
What does the organic vapor cartridge remove?
MVOCs and chemical odors
P1 disposable suits hold out ____% of dry particulate whereas a P2/P3 holds out ___% of dry
particulate.
90, 100
What is the last piece of PE that should be removed & why?
respirator, reduce potential inhalation exposure
What federal agency governs indoor air quality?
none
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What factors affect mold growth?
temperature, light, water, oxygen, pH, nutrients/food source
What is the nutrient that mold grows best on?
Cellulose
Define ERH
equilibrium relative humidity (moisture at the surface)
Example of hydrophilic mold
stachybotrys chartarum
Example of mesophilic mold
aspergillus & penicillium
Example of xerophilic mold
aspergillus & penicillium
4 ways to be exposed to bioaerosols
ingestion; cut/puncture/injection; dermal; inhalation