WINIX U300 Signature Series Air Purifier
WINIX U300 Signature Series Air Purifier
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Winix U300 Signature Series Portable Indoor Air Purifier System

Winix’s signature air cleaner offers 5 stage air filtration with top quality filters remove 99% of odors, dust, pet dander in homes & rooms to 300 sq ft.

5 Stage Air Cleaner with Washable HEPA & Activated Carbon Filters That Remove over 99% of Dust, Hair, Mold, Dander & Odors, Automatic Sensors, Remote Control, PlasmaWave, and More. One of The Best Portable Air Scrubbers for Homes, Rooms & Pets--Plus a 5 Year Warranty!
With all of the portable air purifiers on the market today, sometimes it’s difficult to determine which one is really offers both the best value and most effective air cleaning for your home.  To get some real answers, you have to compare numbers, features and reviews. And when you compare this air cleaner to similar units and even higher priced units, there's no better value than the Winix U300 series air scrubber!
5 Stage Air Cleaning with Long-Life Washable Filters
The Winix U300 Signature Series air purifier features not 3, not 4---but 5 stages of filtration that progressively remove and kill over 99% of all the harmful toxins, allergens, dander, hair, dust mites, mold spores, even bacteria commonly found in homes and rooms. This level of air filtration has proven very effective for those with allergies and asthma. The five stages that the air must pass through before being delivered clean to you and your family are:
Stage 1--Anti-Bacterial Pre-Filter stops lint, pet hair, dust bunnies, etc., and extends the life of the filter cassette.
Stage 2-- Pre-Filter with a CleanCel antimicrobial protective coating kills bacteria and other germs on contact
Stage 3---True washable HEPA filter that removes over 99.97% of the dangerous sub-micron particles, mold spores, dander, bacteria and more as small as 0.3 microns.
Stage 4—The Winix U300 features a premium grade AOC (advanced odor control) activated carbon filter removes 3X more odors and chemicals than standard activated carbon filters
Stage 5---the famous Winix PlasmaWave healthy negative ion stage, which releases OH- ions (no ozone) to kill airborne bacteria, mold spores, viruses. PlasmaWave ions also disintegrate chemical compounds in the air, which further helps reduce odors and gas-type pollutants.
And unlike many portable air scrubbers and other home filtration systems, the Winix U300’s pre-filters, HEPA filter and activated carbon filters are all washable---which helps extend the life of the filter cassette to 12 months or more—far more cost effective than many other air cleaner filters that need replacing every 3-6 months.
4 Speeds, Automatic Sensors, and a Remote Control
The Winix U300 air cleaner offers 4 speeds, from whisper quiet for bedrooms and baby rooms, to Turbo mode that will clean all of the air in a room in a matter of minutes. The U300 also features automatic sensors that detect allergens, dust, smoke and odors, plus an Auto Mode that will tell the U300 to clean the air whenever pollutants are sensed in your home, room or office. There is also a visual indicator that gives you a constant reading on your home's indoor air quality, and you can watch the meter go from poor to good as the air purifier's HEPA, carbon & PlasmaWave technology literally scrub the air!  Finally, a full function remote control is included (batteries included, too)!
Energy Star Rated for Low Power Consumption
The Winix U300 air purifier uses about 40% less energy than non-Energy Star rated air cleaners—and that saves you money on your power bill.
Easy to Use Electronic Controls, Dimmable LED Lights, Too!
The Winix U300 air scrubber also features easy to read, easy to use electronic controls, and a Filter Change Indicator so you know when the filters need be washed or replaced. For night time use, the U300 also features LED lights that can be dimmed so they don’t disturb you or your family while sleeping.
An All Around Amazing Air Cleaner with Maximum Air Cleaning Power at a Discount Price
If you’re looking for the very best portable air purifier value on the market, the Winix U300 Signature Series offers more air filtration power, long lasting washable HEPA and activated carbon filters, automatic sensors, and the famous PlasmaWave Technology---all for under $300 with FREE SHIPPING, That makes the U300 a very tough air scrubber to beat. Air Purifiers and always offers the best cheap discount prices on quality portable air cleaners, filters and many other products with free shipping due to our extremely low overhead. If you have any questions, call our Indoor Air Quality Experts toll-free at 1-800-701-2513. We are here to help!

  • 5 Stage Air Filtration, with True HEPA and Carbon Filters
  • AHAM Certified for rooms up to 300 Sq Ft
  • Winix PlasmaWave Technology provides Healthy Ions to Neutralize Germs & Pollutants—with NO OZONE!
  • Washable Filters for Extended Filter Life to 12 months and beyond
  • Smart Sensors detect pollutants and turn the air purifier on/off automatically!
  • 4 Fan Speeds; Auto Mode and Sleep Mode
  • 5 Year Limited Warranty
  • Energy Star Qualified
  • UL Approved

Model Winix U300 Signature Series
AHAM Room Size Rating Medium to Large Room - 300 sq ft
AHAM CADR (Dust / Smoke / Pollen) 197/197/214
PlasmaWave™ Technology Yes
True HEPA Efficiency 99.97%
Carbon Pre Filter Yes, Washable, Odor Control, Removes Larger Particles and Anti-Bacterial
Dust Sensor Yes
Odor Sensor Yes
Light Sensor Yes
Sleep Mode Yes
Auto Mode Yes
Replace Filter Indicator Yes (Based on Actual Usage)
Number of Fan Speeds 4
Control Type Digital
Color (Body / Front) White
Unit Dimensions D x W x H (in.) 10.4 x 16.3 x 21.7
Unit Weight (lbs.) 13.4 lbs
Voltage AC 120V/60 (Hz)
Power Cord 2 prong
Air Intake Front
Air Out vent Top
CFM (Low / Med / High / Turbo) 53/113/173/226
Sound Level 28-52 dBa Max
UL / CUL Listed Yes
CARB Compliant Yes
Energy Star Yes
Warranty 5 Year Limited
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