Construction Skills Certification Scheme (CSCS) Practice Test

What are two basic filter types used in RPE?

1. Water filters and carbon filters

2. Dust or particle filters and gas or vapour filters

3. Electrostatic filters and magnetic filters

4. Chemical filters and UV filters

The correct answer is: Dust or particle filters and gas or vapour filters

The correct answer highlights the two fundamental types of filters in respiratory protective equipment (RPE): dust or particle filters and gas or vapour filters. Dust or particle filters are designed to capture solid particles like dust, mist, and smoke from the air, making them essential for protecting workers in environments with airborne pollutants. These filters are classified based on their efficiency and the type of particles they can block, which is critical for the safety and health of individuals who may be exposed to harmful airborne materials. Gas or vapour filters, on the other hand, are intended for environments where harmful gases or vapours are present, such as solvents, fumes, or chemical vapours. These filters use specific materials or chemicals that react with the contaminants, effectively neutralizing them before they can be inhaled. Understanding the distinction between these two filter types is crucial for selecting appropriate RPE for specific work environments, ensuring appropriate protection against both solid and gaseous hazards. The other options presented do not accurately represent the fundamental categories of filters used in RPE; thus, they do not provide the correct classification necessary for understanding respiratory protection in construction or industrial settings.