Perfect it is brand new and working

Wonderful air-filtration. Helps clean and sanitize the air. Perfect for someone with dust, or other environmental allergies. Side bonus is that it really keeps the house cool.

Awesome tool for renovators/remodelers or anybody that kicks up dust during work. NOT a respirator replacement but a great addition to your toolbox. Very expensive to operate due to the filter cost but isn't your health worth it? I change out the stage one filters daily and the stage two every other day during work. I haven't owned it long enough to change the HEPA filter. I put it in the room I am working with a sheet of plastic covering the entry--not completely sealed and run the exhaust through an eight inch hose to...well, anywhere. The purifier will 'pull' the plastic towards the room and cause negative air pressure on its own (unless it's a pretty huge room) and picks up most of the airborne dust such as drywall dust, concrete dust, and just dirt in general. I've used during demo, cutting wood, steel concrete, breaking concrete, drywall cutting, drywall sanding and I plan on buying the carbon filters for when I paint. This really is a lung saver. I plan on cleaning the whole tool and replacing the HEPA filter and bringing it to my grandmother's house. She has breathing problems and uses a nebulizer so I think if I go over there, do a deep clean, clean the furnace ducts and shampoo the carpet the air quality should improve significantly for her and my grandpa. Then, over to my mom's house and do the same thing. One last thing, I plan on purchasing the DOP filter so there is 'one pass HEPA filtration' for the family. One last thing, the fact that you can plug in tools to this as a 'surge protector' with gfci protection is great and super handy.

Cleans the air very quickly and creates a good negative air flow for a bedroom project.

This resolved a lingering mold problem and completely changed the quality of air in our house.