Vacuuming on a dry HEPA clogs the filter so that it must be cleaned with a toothpick. As an option, I tried to put a non-dense rag on top of the HEPA filter, you can not use thick foam rubber, as is done in a Samsung vacuum cleaner. According to reviews, he can directly clean construction debris. This is nonsense, its suction is aerovat 200-250, like that of the Samsung SW17H9090H that has seen the views - compared. The main criterion for buying it was to vacuum it dry and like with an aquafilter and to be able to up water. With the last two tasks, he copes well, but dry cleaning is not very good. Too much dust is flying into the HEPA filter.