This quiet piece of wearable is very easy to operate - just press button to turn it on/off for 2 seconds, love that it refresh my air anywhere and remove harmful substances closeby. It elegantly hang on my neck just like any decorative necklace, I also noticed it was not heavy at all. I have tried it chained to my handbag and love that i can just lay it on my desk while I work. Very convenient to carry around, so stylish. Plan to buy one for my niece as well.
I bought this for my daughter who has all kinds of allergies, including pollens. She has only worn it outside. She thinks it helps a little with pollens.