I bought this for my room, it is very good and it consumes very less energy, very useful if anyone is allergic to dust .It neutralizes stale and foul odor rapidly and supplies fresh air.It’s an environment friendly and highly reactive oxidant, which is sprayed very quietly and effectively through a fan. I can smoke freely;) Just kidding. I love this.Here are few details and key Features which can give you quick overview of this - https://goo.gl/9cgstW
This comes in 2 version -
Kent Ozone Table Top Air Purifier
Kent Ozone Wall Air Purifier
Features:
Desktop air purifier
Ideal for a room size of 400 sqft
Produces ozone gas
Kills bacteria, viruses and other micro-organisms.
Extremely silent operation