Quick view VEVOR VEVOR Air Scrubber with 3-Stage Filtration, Stackable Negative Air Machine 550 CFM, Air Cleaner with MERV10, Carbon, H13 HEPA, for Home, Industrial and Commercial Use Highlights 3-stage Filtration: This air scrubber features a three-stage filtration system consisting MSRP: $406.11 Was: Now: $324.89 Options