The Wi-Fi-equipped Coway Airmega 300S air purifier efficiently filter harmful sources in your space and capture 99.999% of nano-sized particles down to 0.01 microns, which is smaller than most allergens, bacteria, mold, and viruses. Coway’s 3-stage HyperCaptive filtration system (with Green True HEPA filter) wraps any space in clean air 24 hours a day. Features Coway’s IoCare App, filter change indicators, smart mode, and real-time air quality monitoring. Coway Airmega 300S cleans and maintains spaces up to 1,256 sq. ft. in 30 minutes.