The Winix C545 is a 4-stage True HEPA air purifier with WiFi connectivity and PlasmaWave technology designed for rooms up to 363 square feet. This AHAM verified air cleaner combines smart sensors with advanced filtration to capture 99.99% of airborne allergens including pollen, dust, smoke, pet dander, and ultrafine particles as small as 0.003 microns.

The purifier features a washable fine mesh pre-filter as the first line of defense against large particles, an activated carbon filter to reduce VOCs and household odors from cooking, pets, and smoke, and a True HEPA filter for comprehensive allergen capture. The proprietary PlasmaWave technology provides an additional layer of air cleaning without producing harmful ozone.

Smart features include WiFi connectivity through the Winix Smart App for remote monitoring and control from anywhere, compatibility with Amazon Alexa voice commands, dual smart sensors that automatically adjust fan speed based on real-time air quality measurements, and a color-coded LED air quality indicator. The unit operates ultra-quietly at just 27 decibels on the lowest speed and features automatic sleep mode that activates when the room darkens for continuous, quiet, energy-efficient operation.

The C545 offers five fan speed settings and displays air quality in real-time through a three-color LED indicator. It includes a filter replacement indicator that illuminates when maintenance is needed. The unit is AHAM verified, UL certified, and backed by a 1-year warranty. Product dimensions are 13.7 inches wide by 8.4 inches deep by 20.5 inches high, weighing 11 pounds.