Bests & Worsts Reviews from Amazon

I got this cause I thought there may be mold in the air in my old old house ( built 1890) since we been here a year in this house there have been no problems but the wife recently started getting hives/ breaking out in rash and what i read was this could kill moldy air and i also thought maybe it could clear up anything else in the air that may be irritating her skin. She has Asthma but never had a problem/ asthma attack so i am sure our dust levels are low, we have 2 dogs that have access to back yard through doggy door so they going in and out ALL day and bringing in dirt, bugs and if its raining.... they got wet dog smell they bring inside. With that said.... our house is vacuumed constantly and cleaned regularly so there really is never a long term bad smell in our house ( or we just used to it hahaha) . So i plugged this thing in downstairs and turned it up to level 5 and turned on the light to kill anything it can that gets cycled through it. As some reviews say there is a smell... my unit had zero initial running smell/ odor about it. I came downstairs and could tell the air was a little fresher but didn't really pay to much attention to it. I Then moved it into our bedroom so it could clean up/ kill anything bad in there we couldn't see, smell, taste, feel etc.. so i turned it on high and closed the door. I returned a couple hours later to get something out of the room and as soon as i walked in I felt the lightest, cleanest , best smelling tasting feeling air ever! So much of a huge noticeable improvement, I told the wife to check it out in case i was over reacting and she was blown away how fresh the air was. If your looking to clear stale air, odors, dusty air etc.... this will do the job. $ I got the unit for $150 and I was questioning spending that much, especially since it takes replacement filters every 6-8 months opposed to just cleaning the blades off like other air cleaners, but i think its the Hepa filter that needs replacing. Either way, I was skeptical at spending the money and I always do mega research to make sure its not cheaper somewhere else, if this model is really better then others etc. etc. etc. and I couldn't be happier. The lightest air I ever breathed! I just stand in the room taking full deep breaths of air cause it smells so fresh and clean and clear and light..... its so unbelievable to me. Next is to move it back downstairs and let it run a few days and clean that big area up. The bedroom cleaned up in hours.... the downstairs is so large it will probably take longer.