The Winix C555 Air Cleaner combines smart sensors with a 5-stage filtration system featuring PlasmaWave Technology for comprehensive air purification. Designed for rooms up to 360 square feet, this Costco exclusive model delivers powerful air cleaning with 4 air changes per hour.

The filtration system includes a washable fine mesh pre-filter for capturing large particles, an anti-microbial coating layer for bacterial protection, a 99.97% efficient True HEPA filter that captures particles down to 0.3 microns including allergens, pollen, mold, fungi, and virus particles, a washable Advanced Odor Control (AOC) carbon filter for eliminating household odors and chemicals, and PlasmaWave Technology that breaks down pollutants at the molecular level (can be switched on/off). The pre-filter and carbon filter are both washable for easy maintenance.

Smart sensors automatically detect and monitor air quality with a visual LED indicator, and in Auto Mode the unit adjusts fan speeds automatically for efficient cleaning. The unit operates quietly at 28 decibels on low settings and includes 4 fan speed settings including a turbo mode. Additional features include a filter replacement indicator, timer function, and remote control for convenient operation.

The compact tower design measures 14.9 inches wide by 23.6 inches tall by 7.8 inches deep and weighs 15.4 pounds for easy portability. The unit features a bottom-to-top airflow design with 2000 perforated holes and delivers CADR ratings of 243 Dust, 232 Smoke, and 246 Pollen (cfm). Energy efficient at 70 watts power consumption, it costs approximately $25 per year to operate 8 hours daily. Certified UL/CUL Listed, CARB Compliant, Energy Star Qualified, and AHAM Verified. Includes a 2-year limited warranty from Winix America Inc.