We had a problem with dust mites a few weeks ago. So I bought a new HEPA filter for my vacuum cleaner. I started washing everything every day. The most polluted place was my living room, namely my pillows, blankets and leather sofas. Yes, and skin too. So I lowered the temperature and turned off the humidity to dry out the house and reduce dust mites. So I managed to get it down to 90% with air and leather sofas, but I still have pillows and a blanket. I washed the pillows 3 times but the essential oils and hot water didn't help. Then I heard about this amazing product. So I bought it and received it within a day. Well, unfortunately, it was useless. I tried it 3 times on my pillowcase to reduce dust mites. While this might reduce dust mites, the air blown out of the side will blow out dust mites (which make my allergies worse) or possibly house dust mites as I developed severe allergies as soon as I used it. I tried the next day and the next day but the same. I washed the pillow and tried again. I can still itch and weep every time I approach the pillow and blanket. Dust mites or their remains are still stuck in pillows and duvets. I plan to throw them away and return the vacuum cleaner. My shark vacuum sucked up dirt and dust mites better than this vacuum. So I plan to invest in a better filter shark Hepa or even Dyson. I wish they had a better hepa filter than they have. Considering that while vacuuming, it's blowing air from the side, so mostly at you or your body.