This Instant air purifier is top of the line in NY opinion. I just got a new garage and wanted to keep the air clean in it so I got this to put in there. I have to say I really can tell a difference in the way it smells in there. I have also used it in my home and covers the area of my living room and kitchen. It cleans the air in minutes and has a mode that automatically adjusts the fan speed. It is also economical friendly and uses less electric! The digital display is very easy to read and it's super easy to use. My home and building smell amazing now!