It’s a no brainer. It gets delivered every 3 months or so. I don’t have to think about it. I can definitely see a difference between the used and new filter. I let it run all day. It’s quiet on the medium setting to sleep with. Love my Sans.

Overall - we are satisfied & even pretty impressed with not just this filter but the Sans Air Purifier as a whole. It's very quiet (until it clicks over to double duty for things like smoke, etc.), it's easy to use, filter shows up every 3 months so no need to remember to purchase, and it seems to do the job fairly well in our 1400 sq ft home.

I am still in the trial phase to clean the air.

came in timely manner and is working great in my small stuffy dusty attic apt. love the features easy to use and quiet.

Sending a new up to date and better filter for free of charge is top notch. No one else would do this.

Love Sans!

I am not sure what SANS is doing, but I am trusting that it is making my home cleaner. One thing I have noticed is my nose is running, I am sneezing a lot, and I am wondering, "why?". I would have thought the SANS would have caused the prevention of these. I do not have a cold or infection, so I am guessing I am allergic to something new. I do not have a fever or any other symptoms, so I know I do not have a cold, etc. I can't figure it out.

I have noticed less dust. I’m not saying it totally eliminates it but it does a darn good job.

We are finding it colder in our home because of the fan.

We have had our Sans for over 6mos now. And I can tell a big difference with my allergies.

This was so worth the money. No more sneezing and congestion in the mornings. Highly recommend for any one with allergies!

It’s working quite well. We are using the Auto Mode setting now. Thank you!

I received my air purifier on Monday. Set up was so easy and the very first night I slept better than I had in years. I am finding relief from congestion that has been bothering me for a long time! Cooking odors disappear quickly rather than lingering all day or night! Top notch product! I have recommended it to family and friends!