This air purifier is amazing. First thing I noticed was how compact and lightweight it is. This makes it easy for moving it to another room if I decide to and not struggle with a heavy purifier. It has 500 square feet of cleaning power which is all I need for my room. It is capable of capturing 99.98% of any size particles. It has clean sense IQ and it senses the air quality and adjusts. This unit is plug it in and walk away. I have smokers and pets in my house and needed some to clean the air. I couldn’t be happier with this unit. When working it is very quiet. I don’t even notice it.  What I need to mention is that it also has odor lock so it traps any odors. I would definitely recommend it to anyone looking for a air purifier that does an amazing job.