I read a lot of reviews and technical facts before deciding on this brand and model. I am very, very happy with my purchase. The numbers on top show you it works. Anytime I cook anything, clean with chemicals or even burn a tiny candle the numbers go up which lets you know it has detected something and is working to purify the air. I keep it on the auto setting 24/7. It is whisper quiet and sleek looking. I am very pleased.

After having a couple of well-known air purifiers that were far too-complicated and failed in function, I chose a Sans because it had an elegant design and was reputed to excel at air purification. It does! I just changed the air filter for the first time, and it was extraordinarily easy---YAY! I've subscribed now and Sans will send me a filter every 3 months. It's a terrific company with first-rate customer service. Five stars for

Thank you for creating Sans! We have a dog who loves to run and swim, a son who is learning to cook, and a lot of dust from the mountain behind us, so we put our Sans to very good use. It's made a huge difference in the air quality and freshness of our apartment. When I can afford it, I'll buy another for the back rooms, too.