My cousin was visiting and went outside to smoke when returning to not my house the sans turned red for a bit until my air was back to normal.

I now have 2 units. I have severe dog allergies and we have 2 dogs. These units have significantly improved my symptoms.

I really like my new Sans. I breathe much better and sleep mych bettrr.

Not seeing the "remarkable" dust elimination depicted in ads, but dust and pet dander seem to be less than before.

Incredible…. Since I turned this on, my nose stopped running and the feeling of having a cold disappeared : this is what allergies to dust were doing to me, for full three years.

Thanks… I turn it on in the morning and feel so much better

I noticed “crisper” air the very next morning!

I don’t know when I whwip get my replacement filter,so far it’s working great!

This is great for people who have breathing problems!

So incredibly happy with both my air purifiers. Arrived quickly. Set up was a breeze and within an hour we immediately felt the difference. The next morning when I opened my window the light turned red then cycled back to blue. Haven’t sneezed since they’ve been on! Best purchase I’ve made!

Air is much cleaner not a lot of dust