Review on 🌬️ HEPA Filter Desktop Small Air Purifiers by WSTA by John Martin

I bought this item because I found the smell in my room very bad. This product was advertised with a charcoal filter and while there is indeed a charcoal filter, the filter will not work if the fan cannot force enough air through it. This product releases so little air. I tried to give it a try, I even left it in a 108 sq ft room with the door closed all day, but this little fan couldn't clean the air. I admit that during operation (and that was all the time since it never worked) the amount of dust on my furniture noticeably decreased. But that dust reduction doesn't help much when you can still smell the air. As an experiment, since it's USB powered, I put it in my car and let it run for a couple of hours. My car is small, two-door, and ventilated the car fairly well. The air smelled clean and dust was kept to a minimum. So this product works well if you live in a car.