Review on 🌬️ ALORAIR Stackable Negative Air Machine with 3-Stage Filtration for Industrial and Commercial Use, Heavy Duty Air Scrubber with MERV-10 Filter, HEPA/Activated Carbon Filter, and 10-Year Warranty by Nikki Williams

I use it on all my models. I love it so much I'm planning to buy a second one for the larger room I'll be working on soon. It's very easy to use, I'll set it up and use it to create a negative airflow space. The noise is quite loud, think a big fan is running, but definitely manageable. I turn on the radio or put on my headphones and listen to the tunes of the day. All in all, if you're a contractor and don't use this, you're doing your customers a disservice.