What kind of material is the filter on the Xiaomi Smart Dehumidifier Lite?

The filter of the Xiaomi Smart Dehumidifier Lite is made of spinning-grade polypropylene resin, which can only filter out large objects such as willow flakes and hair in the air, and is not equivalent to the effect of an air purifier. The filter has anti-bacterial and anti-mold effects, with a 99.99% anti-bacterial rate for C. coli and a 99.99% anti-bacterial rate for Staphylococcus aureus, and the dehumidifier's default drying with power-off function effectively prevents mold and mildew from developing inside the unit.