Envion Therapure TPP250 Permanent HEPA type Air Purifier Cadr (clean air delivery rate): 167 smoke  170 dust  184 pollen Patented hemi-spheric hepa type filter removes allergens, dust mites, pollen, cigarette smoke, mold spore, odors, pet hair and dander Up germicidal light kills airborne bacteria and germs Removes harmful vocs which are found in paint and carpet fumes Ionizer with on/off button (instantly revitalizes the air)