Review on Air purifier Xiaomi Mi Air Purifier 3H Global, white by Adam Wojtczuk ᠌

Main comment - this thing really works. Despite the small size (compared to competitors), the volume of pumped air is enough to clean the air in a room of 35 squares with almost four-meter ceilings - at the same time, I measure it with an air quality sensor standing next to me (Atmotube PRO) - PM sensor in the air cleaner only measures what is happening around the device itself, so not very representative. So, the concentration of PM2.5 without Xiaomi at night (the window is closed) reached 80 μg/m3, with Xiaomi it stays within 15 μg/m3 (the sensor on the bedside table measures +/- what I breathe). When buying, I really missed a simple table with a comparison of different versions of Xiaomi air purifiers and different filters - I found it after the purchase - the third line of devices is the freshest - 3C pumps 320 cubic meters of air per hour (suitable for effectively cleaning a very small room, such as a nursery), 3H - 380 cu. planning). As for the filters (ranked by color) - the standard filter cleans mainly solid particles, up to PM1 (+ activated carbon layer); in green (light green?), a catalytic layer is added that can retain formaldehyde / other VOCs; purple - in addition to the above layers, there is also an antibacterial / antiviral coating. Original filters (see photo) - with an RFID tag (they serve to check the originality + inform about the filter resource; with a non-native filter, the device swears, but it works), there are often fakes - don't get caught (if the filter on Ali is cheaper than 20 USD - a reason to think). To summarize - I recommend this device - it really works if chosen in accordance with the size of the room and is much cheaper than similar devices from Philips and other brands.