Structural Pest Control Applicator Practice Exam

When are cartridge respirators often used?

1. For relatively short exposure to concentrated chemicals

2. For a long exposure to low concentrations of toxic chemicals

3. Both A and B

4. Nevr used for pesticide work

The correct answer is: Both A and B

Cartridge respirators are versatile protective devices designed to filter out contaminants from the air, making them suitable for various situations. They are particularly appropriate when there is a need to protect against airborne chemicals, whether the exposure is for a short duration with high concentrations or an extended period with lower concentrations. Using a cartridge respirator for relatively short exposure to concentrated chemicals is effective because these respirators can quickly provide protection against specific hazardous substances. The cartridges are designed to adsorb or filter out particular chemicals, allowing for safe breathing during tasks where high levels of exposure may occur for brief periods. Conversely, the use of cartridge respirators for longer exposures to low concentrations of toxic chemicals is also relevant. In these situations, they can still effectively reduce the inhalation of harmful substances, making them an important tool in protecting workers who may encounter these conditions over extended periods. Given this dual capability, it’s clear why both situations are suitable for the use of cartridge respirators, affirming the appropriateness of the chosen answer.