We bought this unit in hopes it would help the air quality in our daughters bedroom due to health reasons and it got the better reviews over others. The unit is small enough it doesn't look out of place and quiet enough we haven't needed to put it on sleep mode and we do notice a difference in her breathing already (had it just over 2 weeks now). We looked in to other units (name brands with higher price tags) but are happy we went with this unit. Definitely give it a thumbs up and recommend.