CDPH Lead Inspector/Assessor California State Practice Exam

What equipment is specifically necessary for a HEPA vacuum to ensure effective cleaning?

1. High-efficiency filter

2. HEPA filter

3. Standard vacuum bag

4. Wet cleaning attachment

The correct answer is: HEPA filter

A HEPA vacuum must be equipped with a HEPA filter to ensure effective cleaning, particularly in environments where lead dust or other hazardous particles are present. HEPA stands for High-Efficiency Particulate Air, and a HEPA filter is designed to trap at least 99.97% of particles that are 0.3 microns in size. This level of filtration is essential for minimizing airborne contaminants and ensuring that the vacuum doesn't merely redistribute lead dust back into the environment. Using a vacuum with a standard filter, bag, or even simply having a high-efficiency filter does not provide the same level of protection. Only a HEPA filter meets the strict criteria for capturing fine particulate matter effectively, making it a crucial component of any vacuums employed in lead abatement and cleaning processes. The effectiveness of a HEPA vacuum lies significantly in its ability to prevent lead particles from escaping back into the air, thus protecting both the workers and the occupants of the space being cleaned.