Proscenic A9 air purifier review: Powerful air flow, questionable odor

Proscenic’s A9 air purifier attempts to pack higher-end features into a more compact package, but I ultimately wasn’t a big fan of the smart-home device. On paper things seem solid. At 11 pounds the 10 x 10 x 20-inch device is right in line with other small purifiers, such as the Coway Airmega 150 and