GoKawiilSmall Air Purifiers Proposed as Alternative to White Noise Machines
A piece compares typical white noise machines to compact air purifiers, noting a $47, 6.5-inch purifier that cleans 34 cubic feet of air per minute (CADR) at 45dB — similar noise levels to a classic sound machine. It contrasts this with a larger, pricier AirFanta 3Pro unit ($165, 12.6 inches) that cleans 6 to 12 times more air depending on noise level (up to ~56dB).