When searching for an air purifier it was most important to me to choose one that would clear my home of cigarette smoke. This purifier works perfect, I am not a smoker, but my neighbor is and therefore, it comes into my apartment. I have asthma and since putting this purifier in, I have not had to use my inhaler. It’s lightweight and easy to move around as well as operate. It creates a low white noise throughout my home, but is not loud. It’s doing everything I hoped for!