Xiaomi C203-LX Filter Stick vacuum

Efficient filtration on front and back (including 1 post-filter and 2 pre-filters)

Highly efficient post-filter Reduce secondary pollution
The post-filter is folded multiple times to form a tight composite structure that provides highly efficient filtration. The machine uses a multi-stage filter system, which can effectively lock particulates as small as 0.3μm, with a filtration efficiency as high as 99.9%

Intercept dust with pre-filters Reduce filtration pressure
The pre-filters can intercept larger dust particulates first to reduce filtration pressure effectively.