Which color filter combination is acceptable for HEPA filters in lead-related work?

Which color filter combination is acceptable for HEPA filters in lead-related work?

• A. Black
• B. Purple
• C. Blue
• D. Black or Purple

Answer: (D)

In lead-related cleanup, using a true HEPA filter is essential to reliably capture lead dust and prevent its spread. Color coding on HEPA filter assemblies is used to show whether a filter is certified for this use. Black and purple are the two colors that indicate an approved HEPA filter for lead work. Either color means the filter meets the necessary high-efficiency standard (capturing very small particles) required for lead dust containment. Other colors generally point to non-HEPA or prefilter types that don’t guarantee the same level of filtration, so they’re not acceptable for this purpose.

In lead-related cleanup, using a true HEPA filter is essential to reliably capture lead dust and prevent its spread. Color coding on HEPA filter assemblies is used to show whether a filter is certified for this use. Black and purple are the two colors that indicate an approved HEPA filter for lead work. Either color means the filter meets the necessary high-efficiency standard (capturing very small particles) required for lead dust containment. Other colors generally point to non-HEPA or prefilter types that don’t guarantee the same level of filtration, so they’re not acceptable for this purpose.