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.

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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.

AC 2 Stage Protection
AC550 New Controls

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.

AC550 Cutaway
5 Year Banner

Satisfaction guaranteed.

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

Show Differences

Warranty 5 year
Usage 335 sq. ft.
Control Style Soft Touch Button
Item Weight 14.95 lbs.
Item Height 27.4 in.
Item Depth 11.5 in.
Item Width 13.2 in.
CADR Dust 218
CADR Pollen 245
CADR Smoke 205
Watts 145
Volts 120
Hertz 60 HZ
High Speed CFM 161
Low Speed CFM 68
High Speed RPM 1220
Low Speed RPM 608
PowerCord Length 6 ft.
PowerCord Plug Type 2-Pin Polarized

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