"A smart, verified purifier for a medium room, not a whole apartment."
The 'Up to 1073Ft²' claim simply means the fan can move the air in a very large room once per hour. For effective allergen and dust removal, treat this as a purifier for a single 222 sq ft room.
This unit is a solid value for someone wanting a 'set-and-forget' purifier for a single bedroom or home office. The combination of AHAM verification, a real particle sensor for auto mode, and WiFi control is compelling for the price.
Anyone attempting to clean the air in an actual 1,000 sq ft open-plan living space should skip this; multiple units would be required. Buyers should also research the replacement filter cost, as that is the primary long-term expense and is not specified.