Question

post - test
which of the following statements is true regarding filters and cartridges for air - purifying respirators?
a. filters use activated carbon, cartridges contain layers of material.
b. a cartridge will protect you from particulates, gasses, and vapor.
c. filters trap particulates, cartridges absorb gasses and vapors.
d. if a filter is combined with a cartridge, it can no longer trap particulates.

Explanation:

Filters in air - purifying respirators are designed to trap particulates. Cartridges are used to absorb gases and vapors. Option A has incorrect definitions for filters and cartridges. Option B over - states what a cartridge can do as it may not protect from all particulates, gases and vapors comprehensively. Option D is incorrect as combining a filter with a cartridge does not prevent the filter from trapping particulates.

Answer:

C. Filters trap particulates, cartridges absorb gases and vapors.