Xiaomi Mi Air Purifier 4 Pro

Works OK, but filter replacement are not cheap – Bought this for my small 3.5m x 4m x 2.5m room and works fine on managing dust and odor. Filter replacement cost is quite expensive at $72 ~ $85 depending where you buy the filter from. Overall I have no issue with the air purifier, it's just not that cost effective. Cleaning & maintenance is straightforward, however I was unable to remove part of dust stain on the machine. Can get rather noisy unless you leave it on Auto/Low Speed Show details