What does the acronym HEPA stand for in the context of air filters?

The acronym HEPA stands for High-Efficiency Particulate Air. In the context of air filters, this refers to a type of air filter that is designed to trap a high percentage of very small particles, making it highly effective for improving indoor air quality. HEPA filters are capable of capturing at least 99.97% of particles that are 0.3 microns in diameter, including dust, pollen, mold spores, and pet dander. This characteristic is particularly important in settings such as homes, hospitals, and laboratories, where maintaining clean air is crucial for health and safety.

Understanding the function and standards of HEPA filters is essential for professionals dealing with lead risk assessment and remediation, as airborne contaminants—including lead dust—can have significant health implications. Proper use of HEPA filters is a key component in managing and mitigating lead exposure risks, which is why familiarity with such terminology is critical for anyone in the field.