The GermGuardian AC9400W Hi-Performance 360 Tower Console Air Purifier is a powerful floor-standing unit designed for medium to large rooms. Standing 28.5 inches tall with a 12 x 12 inch footprint, it circulates the air 4.8 times per hour in 402 sq. ft. rooms and once per hour in rooms up to 1,943 sq. ft., making it well-suited for bedrooms, living areas, and open spaces.

Its 360-degree True HEPA filter captures 99.97% of airborne particles as small as 0.1 microns, including household dust, pet dander, mold spores, and plant pollens. A large activated carbon filter reduces odors from pets, smoke, cooking fumes, and VOCs emitted by common household products and cleaning chemicals. A built-in ionizer can be activated to emit negative ions that attract microscopic allergens, forming larger particles more easily trapped by the HEPA filter.

The unit features a smart Air Quality Monitor (AQM) that detects particulate matter 2.5+ microns in size and automatically adjusts fan speed in auto mode. Four speed settings, a programmable 12-hour timer, sleep mode with display shutoff, and a touch panel with child lock round out the controls. Ultra-quiet operation makes it practical for overnight use. A single replacement filter (model FLT9400) is needed every 6–8 months. The unit weighs 18.15 lbs, has a 72-inch cord, and carries a 3-year warranty.