2 small sans & one large sans I wrote one review, they deleted it. I bought a small Sans for my bedroom because I have multiple medical issues. I then bought another one for an elderly man that I am caregiver to, THEN I bought a big unit for the kitchen and living room area. You advertised that the units would eliminate the dust issue in the house. It did not. The dust seems to be worse like it is just floating it around. Fraudulent advertising should be punishable with a huge fine! I've had all three now for at least 3 months. Your review tips says you want feedback and when I put my honest review, you deleted it, which is what I am sure you will do with this one.

Poor customer service I have been on hold for customer service for 28 minutes and then hung up. On the talk icon on the website I have waited for 30 minutes after entering my question and then disconnected.

Buyer Beware This is not True Sans, would you like to see a copy of the transcript conversation? I still have it. I replied back within minutes with the recording, which showed the problem in both machines. John didn't address the first issue at all. Of the second SANS unit issue, he only said not to worry as the warning light would probably come on in a few days to a week. When I pointed out I had changed the filters once before and reset both lights at the same time. So they both should have come on together or at least a week apart, that's when SANS stopped talking. Oh SANS don't you wanna talk anymore 😂 _____________ I purchased three units and they work decently. Not as great as they claim but it definitely helped with my allergies to an extent. Then I started experiencing minor problems with two of my units. When I brought the problem to the companies attention, the company line was, "This has never happened before." When I pointed out there is always a first they stopped talking. Decent product Really bad customer service. The reason you don't hear the negative is bc they block all bad press.

The BEST! Ever since I became a mom I became aware of the potential toxins that we breathe everyday in our own homes. It has been my mission to to my sons environment as clean and non toxic as much as possible. I began researching air purifiers and have tried NUMEROUS brands. I invested in a high quality air quality monitor to measure vocs, etc and let me tell you NONE of the purifiers that I've used have give me a consistent green light on my air quality monitor than SANS after using it for a couple of weeks. I can feel and smell a difference. If your a concerned mom or anyone just looking for something to give you good quality air, look no further. This is the one, I promise you!!! I only wish this was invented sooner!! Thank you Sans!

I love it I love it. I slept so well the first night I had it on. But, where are all the explanations and guidelines for the functionality of the appliance?