Fresh air finally in my house. I’m lucky I purchased this before the sand storm flew in. The air quality was awful outside and as I let me dogs out throughout the day, I saw the air cleaner change color to show me it was cleaning to air. I love that feature. I own a Molecule and although it impresses me in a smaller room, it stays one color and one setting unless you manually change it. I like how the Alen machine does that work for you. I just turned it on and I forget about it. I was also super impressed with how fast it was shipped. This was a great investment. Great for sleep too as it is very quiet.