This in theory is a good product, good suction, HEPA, small so fits well in my tiny house. But the filter is paper and you can't buy the replacement yet. I have a mold allergy, so getting a dirty paper filter wet to clean it repeatedly is not a good idea (when I called technical assistance this is what they told me to do in lieu of buying a replacement filter). After clearning, it only worked for just a few days, then clogged again. So it sits in my house and I sweep instead. Also the collector is super-tiny, though I could live with that. Ultimately, a waste of money.