High-efficiency particulate air filter


high-efficiency particulate air filter

[‚hī i¦fish·ən·sē pər‚tik·yə·lət ′er ‚fil·tər] (mechanical engineering) An air filter capable of reducing the concentration of solid particles (0.3 millimeter in diameter or larger) in the airstream by 99.97%. Also known as HEPA filter.

High-efficiency particulate air filter

(HEPA)An air filter that captures a high percentage of all particles, including very small particles not caught by other types of filters.