The Easy Air Purifier was one of the air purifiers recommended by the National Asthma Council Australia's Sensitive Choice website. It is a good size for a bedroom and, being small and light, can be moved around easily. It is quiet, very quiet. My son's hay fever symptoms have decreased noticeably since it was placed in his bedroom, despite his initial scepticism. With the current air quality issues in Australia I am pleased we made this purchase.