We desperately needed something to help me combat a neighbor who must chain smoke morning, noon and night. It was driving us mad walking into our apartment and it was as if we ourselves had just sucked back a carton of Marlboro’s. Further, our kiddos were breathing in the same crap and it had to stop. In addition to the smoke, we moved to a dry desert area and there is dust everywhere. Constant headaches all the time. Anyhow, unboxed got all set up and stepped outside for about 5 min. Came inside and noticed the usual smoke smell we are nose blind to throughout the day. Ran it on high for 30 min, stepped out for a bit, came back and the smell was completely CLEARED. The fan on high, is to us, it's quite as per advisement. Product looks great, came packaged well and arrived on time.