Filters can be vacuumed and reused. For this model, they are one with most such Xiaomi devices. I use two such filters in the forced ventilation system at home, they also worked in frosts of -20. Its pros: Powerful 600m3/hour, effective filter. 17 steps of power - at the first 2 it is silent, further up to the 5th it does not interfere, and then it makes a noticeable noise. WiFi, control over the Internet in the Mihome ecosystem. Programmable. Shows the current pollution, temperature and humidity. Some cons: The size is too big - a fee for a cubic capacity and two turbines inside. Filters are expensive - I used to buy for 2500, now they will be x2 :(
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