Structural Pest Control Applicator Practice Exam

When is it necessary to use gas masks with independent oxygen supplies?

1. When mixing pesticides

2. When you are exposed to known hazardous materials

3. Both when exposed to unknown vapors and when reentering a fumigated area

4. Only during fumigation of buildings

The correct answer is: Both when exposed to unknown vapors and when reentering a fumigated area

Using gas masks with independent oxygen supplies is essential in situations where there is potential exposure to hazardous environments that could be life-threatening. This includes exposure to unknown vapors, where the specific characteristics of the air quality are not known, making it vital to have an oxygen supply that is independent of the surrounding atmosphere. Additionally, when reentering a fumigated area, there may be residues of toxic gases that were used during the fumigation process. In both scenarios, the risk of inhaling dangerous materials exists, necessitating the use of a gas mask equipped with its own oxygen supply to ensure the safety of the individual. Overall, the use of such protective equipment serves to safeguard against both identified and unidentified hazards that can arise in various pest control scenarios, especially during fumigation where toxic substances may linger in the air.