Winix C909 4-Stage Air Purifier with Wi-Fi & PlasmaWave® Technology
The Winix C909 combines advanced air-cleaning technology with smart controls to help maintain cleaner indoor air. Designed for spaces up to 500 sq. ft. (46.45 m²) according to AHAM verification, it features a four-stage filtration system, automatic air-quality monitoring, Wi-Fi connectivity, and energy-efficient operation.
The washable fine-mesh pre-filter captures larger airborne particles, while the activated carbon filter helps reduce household odors and VOCs from sources such as cooking, pets, and smoke. The True HEPA filter captures 99.99% of airborne particles as small as 0.003 microns, based on independent laboratory testing of inanimate particles. Winix PlasmaWave® technology provides an additional air-cleaning process.
Built-in smart sensors continuously monitor indoor air quality and automatically adjust the fan speed when Auto Mode is selected. The illuminated air-quality indicator provides an easy-to-see representation of current conditions. When the room becomes dark, the purifier can automatically switch to Sleep Mode for quieter, energy-efficient operation.
With Wi-Fi connectivity, you can use the Winix Smart App to remotely monitor air quality, adjust the purifier, and check filter life.
Key Features
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AHAM Verified® coverage: 500 sq. ft. (46.45 m²)
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Can clean larger spaces at increased air-change rates: up to 2,420 sq. ft. in 1 hour, 1,210 sq. ft. in 30 minutes, 807 sq. ft. in 20 minutes, or 605 sq. ft. in 15 minutes
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Four-stage air purification: fine-mesh pre-filter, activated carbon filter, True HEPA filter, and PlasmaWave® technology
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True HEPA filtration: Captures 99.99% of airborne particles as small as 0.003 microns, based on independent laboratory testing
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Wi-Fi enabled: Monitor and control the purifier through the Winix Smart App
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Smart sensors and Auto Mode: Automatically adjusts fan speed based on detected air quality
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Washable pre-filter: Helps capture larger airborne particles
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Activated carbon filter: Helps reduce odors and VOCs
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PlasmaWave® technology: Provides an additional air-cleaning stage
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Real-time air-quality indicator: LED display shows current air-quality conditions
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Quiet operation: Approximately 25 dB on the lowest fan setting
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Automatic Sleep Mode: Activates when the surrounding room becomes dark
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Energy efficient: ENERGY STAR® qualified
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Certified and verified: AHAM Verified®, ENERGY STAR® qualified, and UL Certified
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Filter replacement indicator: Alerts you when filters should be replaced
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Two-year filter supply included: Includes two True HEPA filters and eight activated carbon filters under normal usage
Included
Replacement Filters
Replacement filters are available through Costco.ca.
Costco item: #1386827
Product Information