Honeywell F90A Air Cleaner removes 95% of the airborne contaminants such as tobacco and cooking smoke, dust, pollen, bacteria, and larger viruses from the air circulated through the unit. You may have seen one of these units in a bingo hall, pool hall, restaurant, or bar and they were sometimes called "smoke eaters" for how efficiently they removed smoke from the air. Can be used to clean the air for the entire house, family room, man cave, garage, etc., as it moves 1,250 cfm at high speed. Three-speed fan and three-position adjustable discharge louvers to control the direction of the discharged air. The heavy duty cells, prefilter, and grille are removable for cleaning so there is no need to ever buy replacement filters. It is in good working condition. In my opinion the best air filter ever made. Measures 2'4" (28") x 2'4" (28") x 1'2" (14"). It is sitting on a wheeled dolly (dolly not included).