Construction Skills Certification Scheme (CSCS) Practice Test

In what situation is a particle filter considered suitable for use?

1. When there are hazardous gases present

2. When dust and fibers are in the air

3. When performing underwater tasks

4. When working in high-temperature environments

The correct answer is: When dust and fibers are in the air

A particle filter is specifically designed to capture airborne particulates, which include dust, fibers, and other small particles. This makes it particularly suitable for environments where these contaminants are present in the air. The design of a particle filter allows it to effectively trap these particles, improving air quality and protecting the respiratory system of individuals working in such environments. On the other hand, while there may be specific measures for dealing with hazardous gases, a particle filter does not effectively address such situations, as it is not designed for gas filtration. In underwater tasks and high-temperature environments, other types of protection and filtration would be more appropriate, as they require entirely different considerations than those provided by a particle filter. Thus, using a particle filter in situations where dust and fibers are prevalent is the correct application for this type of protective equipment.