Normally we have information here about the product, but we couldn't find any in english...it was a little worrying but it is for sale on Amazon so thats a plus. There are other products like this on Amazon as well. We are not sure which was the original.
At first you see this and think "hey that is pretty clever". Then you think "How fast can I get it to go on those flat escalators?". Us too...Us too.
Let's face it no matter where you are your homes air quality isn't the best. However most people have no idea what is in their air. Await changes that by helping educating you on what's wrong and what needs fixing.