U300 Signature Series Premium Medium Sized Room Air Cleaner
By: Winix
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The Winix Signature U300 True-HEPA Air Cleaner with PlasmaWave™ Technology features our Signature 5 Stage Cleaning System to offer superior air cleaning that captures 99.99% of unseen particles suspended in the air such as dust, pollen, pet dander, smoke, mold spores, organic chemicals and is 3X more effective than disposable carbon filters at removing the strongest household odors.

The U300 is our midsized air cleaner in the Signature Series and is designed for optimal use in a large bedroom or living room; Featuring a 5-Stage Air Cleaning System, the U300 uses Washable Pre-Filter to capture large particles like hair, lint and pet fur-helping to extend the life of the HEPA Filter and reduce housekeeping; we treat the filter with CleanCel™ anti-microbial coating that prevents the growth of odor causing organisms. The 99.99% efficient True-HEPA Filter then captures the particles you can’t even see, including pet dander, smoke, pollen and mold spores. The air then passes through our Advanced Odor Control (AOC) Washable Activated Carbon filter that traps and absorbs the strongest Household, Cooking and Pet odors.

Winix’s own PlasmaWave™ Technology then safely breaks apart odors, chemical vapors and other pollutants at the molecular level to offer superior all-around air cleaning-without producing any harmful ozone.

An Auto Mode and Air Quality Sensor combine to deliver Set-and-Forget convenience and optimal performance; 4 Fan Speeds; Sleep Mode; Remote Control. Energy Star Qualified; AHAM Room Size Rating 300 sq ft

5-Stage Air Cleaning:

  • Washable Anti-Bacterial Pre-Filter
  • 99.99% effective True HEPA
  • Nano Silver Anti-Microbial Treatment
  • Washable AOC (Advanced Odor Control) Carbon
  • PlasmaWave Technology


  • 99.99% True-HEPA Filter
  •  Air Quality Sensor monitors the presence of airborne particles and adjusts settings automatically to deliver Set-and-Forget convenience
  • Auto Mode smart Sensors measure room impurities and adjusts fan speed accordingly to remove them efficiently and effectively
  • EnergyStar Qualified
  • PlasmaWave™ Technology
  • Programmable Remote Control allows adjustments from anywhere in the room
  • Washable Anti-Bacterial Pre-Filter is a mesh filter that allows air flow while trapping large particles such as pet hair, lint and pollen. This pre-filter helps to extend the life of the True-HEPA filter by capturing these larger particles and impurities. The materials used to create this filter are specifically designed to resist the growth of bacteria
  • Washable Advanced Odor Control Carbon Filter (AOC™) absorbs and neutralizes offensive pet and household odors. Made from natural coconut shell; this enhanced carbon filter is 3 times more effective at removing ammonia and other offensive odors than a standard disposable carbon filter


  • AHAM Room Size Rating: Medium room/300 sq. ft.
  • CADR Scores (Clean Air Delivery Rate): 197 / 197 / 214 (Dust / Smoke / Pollen)
  • Replacement Filter #: Comes with sku: 114190
  • Replace Filter Indicator
  • Number of Fan Speeds: 4
  • Display Type: Digital
  • Color (Body/Front): White / Silver
  • Unit Dimensions W x D x H (in.): 16.3 x 10.4 x 21.7
  • Unit Weight (lb.): 13.4
  • Voltage / Hertz / Amps: AC 120V / 60 (Hz) / 1.1
  • Power Cord: 2 Prong / 6.8 ft.
  • (Watts) Low/High: 4/60
  • db Rating (Low / Turbo): 28/52
  • CFM (Quiet/Med/High/ Turbo): 42 / 85 / 131 / 173
  • Dust CADR/Watt: 3.28
  • Air Intake: Side
  • Air Out Vent: top
  • UL / CUL Listed
  • CARB Compliant
  • AHAM
  • Warranty: 5 Year Limited

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UPC: "8809154395497 Model: 114100