Surround Air MT-8500 6-in-1 Ionic Air Purifier with True HEPA, Germ-Killing UV Light and Negative Ion Generator (White)

Profile is nice, function is low quality. I've had way cheaper filters do a better job at smell absorbtion and reduce dust but they are way louder and I wanted a quieter filter so I got it but it cost me more money but does a bad job, it just recirculates the air like a fan, not really cleaning it much. Sure it's super quiet on low but now I wish I had my loud one that actually worked at reducing dust and smell and allergies. I've had this for 3 months on straight, I even added an Xtra charcoal zeolite carbon prefilter to see if that would help. I use this in a small bedroom and it can't even clean that small of a space. While the auto feature does detect any kind of smell in the room it turns on high to get rid of it but honestly this machine just is all show and no function. It has yet to get rid of any slight smells in the room, it just pushes smell around the room,can't filter smoke from bon fires my neighbors do 40 ft away, i have pet gerbils and it doesn't freshen up the air at all, a dogs fart goes in it and comes right back out I have to open a window to air it out, it doesn't clean up any of the air bc the filter is really clean for being on for 3 months straight, other filters would have grey dust by now this has barely any slight fuzz, honestly my room is as dusty as ever, it was way cleaner with a loud Holmes filter which looks like I will have to rebuy. Save the money and buy a cheaper hepa filter or one with higher reviews, forget the bells and whistles and listen to what people rate it.

Work well and quiet! I am not sure if it help us to sleep better but I the fan filter out dust and we barely noted if it is running!

Use this in my bedroom. Very quiet and efficient. Just wish the led lights weren't so bright so I could run all night.

Good product, so far.

The auto feature seems like a bit of a joke. When it's on auto it just stays on the lowest setting. But it's really quiet and there's a washable prefilter which is nice.

“This 8500 model has a photocatalytic filter, which is coated with titanium oxide. It reacts with the UV radiation to create superoxide ions.” This means the machine produces highly damaging free radicals such as “SUPEROXIDE,” which has an adverse negative effect on the human body. To help with superoxide detoxification; the human body produces a natural antioxidant called “SUPEROXIDE DISMUTASE” or “SOD ENZYMES” to dismute the dangerous superoxide anion compound.The superoxide anion produces tissue injury and associated inflammation in all tissues. This tissue injury and inflammation form the basis of many diseases including hyperoxic lung damage, ischemia and reperfusion injuries (heart disease/stroke), atherosclerosis, radiation injury, and various forms of cancer.CAVEAT, this machine could compromise your health!

I am returning this product. I have no opinion on how well it works but on medium and high settings, the fan is obnoxiously loud and annoying.

Very quite.