Odnushku 50 sq. M. I cleaned it in 25 minutes, cleaned the dust box twice. We lived for a year without a vacuum cleaner. The child has already grown up, so all over the apartment there are torn pieces of paper, crumbs, etc., like everyone else. A lot of accumulated in the corners and in hard-to-reach places. Did it. Of course quickly loses power when the filter is clogged. I recommend cleaning. Warms moderately. Washes easily.