Review on 🌬️ ALORAIR 3 Stage Filtration Air Scrubber for Industrial and Commercial Use | Stackable Negative Air Machine with MERV-10, HEPA, and Activated Carbon Filters | Heavy Duty Air Cleaner with 10 Year Warranty by Jessica Ness

This machine is about 25% bigger than it should be, noisier than other brands, custom size filters so you can't use shelf filters and should order your overpriced filters . The Merv 8 filter is about $7 in the store. They cost $127 for 3. This is just the pre-filter. This machine only "stage 2" third pre-filter will be beautiful. screen filter or similar. The filter change light does not work out of the box. I turned it on with the lid closed, but the light doesn't come on. The pre-filter is about 1/4 inch smaller on either side, so I'm guessing that the hepa filter gets dirty very quickly due to the space between the two filters. I wouldn't recommend this for anything other than moving clean air.