This is an amazing product! This is a heater, air purifier and a fan, it can also rotate. It has a surprisingly strong force behind the fan. The heater is amazing also, it's adjustable and tells you what the temp is. When the air purifier is on you can honestly tell a difference. Any unpleasant smell or if your sneezing or coughing it really does help. It is a decent size, with good power behind it!