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AC550 Air Purifier with True HEPA Filtration


  • 2 True HEPA Filters Capture 99.97% of Contaminants
  • 2 Odor Capturing Activated Carbon Prefilters
  • Whole Room Air Purification – Up to 335 Sq. Ft.
  • Automatic Dust Sensing Mode
  • Sleep Mode for Quiet Night Time Operation
  • 4 Speed Settings
  • 5 Year Warranty
  • Filter Replacement Indication
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The Vornado AC550 Whole Room Air Purifier uses true HEPA filtration, one of the most effective filters available, to remove up to 99.97% of airborne allergens down to .3 microns in size.  The Vornado Whole Room Purifier actively circulates and filters all the air throughout a room. Without powerful circulation, the air cleaner is only cleaning the immediate area around the unit. The AC550 uses a radial blower to intake and clean all the air in a room – up to 335 sq. ft . Precision engineering allows the blower to operate quietly, despite its powerful air flow. The AC550 uses a combination of 2 HEPA and 2 carbon filters to trap Dust, Pollen, Pet Dander, Smoke, Bacteria, Mold Spores, Dust Mites, and more. The carbon prefilter both adsorbs odors and traps larger particles. When in ‘auto mode’, advanced dust sensing technology detects the level of dust in a room, fluctuating the cleaning cycle up or down, depending on the air quality.  Features 4 speeds, push button electronic controls, filter replacement indicator, sleep mode and industry leading 5 year limited warranty. Two (2) True HEPA Filters (MD1-0022) and Two (2) Carbon Prefilters (MD1-0023) included. This product does not emit ozone.

Purify more air, more often.

Vornado has combined a powerful blower with precise aerodynamics, to effectively clean all the air in the room.

2 stage protection.

Poor air quality can trigger severe allergy and asthma symptoms. Carbon filtration captures odors while True HEPA filtration captures 99.97% of particles 0.3 microns or larger.

Intelligent controls.

Advanced sensors monitor airborne particle levels in the room and automatically adjust the output level accordingly. Sleep Mode automatically quiets operation in low light conditions. Filter replacement indicators help ensure peak performance.

Not all True HEPA air purifiers are created equal.

Even a unit with a 99.97% HEPA filter isn’t guaranteed to output 99.97% clean air like a Vornado does. Gaps, poorly sealed filter housings, and excessive air velocity all reduce the effectiveness of the product.

5-year Satisfaction Guarantee

Satisfaction guaranteed.

Most Vornado products have a guarantee that gives you peace of mind for 5 years — the not-so-standard, standard.

Show Differences

Warranty5 year
Usage335 sq. ft.
Control StyleSoft Touch Button
Item Weight14.95 lbs.
Item Height27.4 in.
Item Depth11.5 in.
Item Width13.2 in.
CADR Dust218
CADR Pollen245
CADR Smoke205
Hertz60 HZ
High Speed CFM161
Low Speed CFM68
High Speed RPM1220
Low Speed RPM608
PowerCord Length6 ft.
PowerCord Plug Type2-Pin Polarized