Winix U450 Signature HEPA Air Cleaner with PlasmaWave Technology
By: Winix

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Clean Air. Perfected. Introducing the Winix Signature Series of Air Cleaners.

The Winix Signature U450 True-HEPA Air Cleaner with PlasmaWave™ Technology features our Signature 5 Stage Cleaning System to offer superior air cleaning to capture 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 U450 is the largest and most powerful air cleaner we make and is designed for optimal use for a family room or high performance in multiple rooms; Featuring a 5-Stage Air Cleaning System, the U450 uses Washable Pre-Filter to 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 odors produced from cooking, pets and ammonia. 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 450 sq ft
Winix – The Cleanest Air You Can Make Yourself.

PlasmaWave™ creates Positive and Negative ions that combine with natural water vapor to form hydroxyls. Hydroxyls instantly neutralize viruses, bacteria, chemical vapors, odors and gases in the air by breaking apart their molecular structure into water vapor and other harmless air molecules. This entire process is similar to what happens in the upper layers of the Earths’ atmosphere. PlasmaWave™ emulates the way nature cleans the air. PlasmaWave™ - the Cleanest Air You Can Make Yourself!

True-HEPA Filter removes 99.99% of all airborne pollutants as small as 0.3 microns from the air passing through the filter. HEPA filters trap smoke, soot, micro-dust, pet dander, mold spores, pollen and most airborne microbials. HEPA which stands for High Efficiency Particulate Arresting filter is recognized as the most effective method of filtering air of contaminants and irritants. It is commonly used where a very clean environment is needed, such as aerospace, medical and high-tech manufacturing applications. Winix air cleaners use the most advanced HEPA filter technology available. Only a filter with 99.97% efficiency can claim to be 'True-HEPA."

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
  • 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: Large Room/450 sq. ft.
  • CADR Scores (Clean Air Delivery Rate): 298 / 291 / 343 (Dust / Smoke / Pollen)
  • Replacement Filter #: Comes with sku: 114290
  • True HEPA Efficiency
  • Washable Pre-Filter
  • Anti-Microbial: CleanCel
  • Air Quality Sensor
  • Sleep Mode
  • Auto Mode
  • Replace Filter Indicator
  • Number of Fan Speeds: 4
  • Display Type: Digital
  • Color (Body/Front): White / Silver
  • Unit Dimensions W x D x H (in.): 18.9 x 11.8 x 25.6
  • Unit Weight (lb.): 18.7
  • Packaged Dimensions W x D x H (in.): 20.5 x 13.4 x 27.2
  • Packaged Weight (lbs.): 24.9
  • Voltage / Hertz / Amps: AC 120V / 60 (Hz) / 1.1
  • Power Cord: 2 Prong / 6.8 ft.
  • (Watts) Low/High: 10/110
  • db Rating (Low / Turbo): 29/56
  • CFM (Quiet/Med/High/ Turbo): 78 / 148 / 215 / 300
  • Dust CADR/Watt: 2.7
  • Air Intake: Side
  • Air Out Vent: Top
  • UL / CUL Listed
  • CARB Compliant
  • AHAM
  • Warranty: 5 Year Limited

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UPC: 8809154395510 Model: 114200