HEPA Filter-Wooden 24in. x 24in. x 11.5in.
HEPA Filters (High Efficiency Particulate Air) are used in the mechanical filtration to clean air of small particles like dust, smoke, and other harmful contaminants. Sturdy, wooden frame is standardized with a rigid enclosure using 5/8 inch particle board. Rated to filter 99.97% of pollutants.