Use with sheet rock ceiling installations. Motorized HEPA Filter with Room-Side Component Filter Specs: 23.625”x47.625”x 14.5” high, GS/Gel Seal HEPA filter removed from inside cleanroom through hinged grill. White painted steel with exposed anodized aluminum filter frame. 208-230v, 50/60 Hz, 170 watts, 99.99% @ 0.3 microns HEPA filter with 30% ASHRAE efficient pleated prefilter. Solid state speed control. Suggestion: Buy 19991-24 Ceiling Mounting Frame to assist in mounting filter and supporting sheet rock ceiling. For QUANTITY DISCOUNTS, Please Contact Innotech Products!