Product very design. I like the automatic function which operates the machine only when the air is poor. I love the colors distributed (blue standby, pink and red with moderate function when it is active). Silent mode is appreciable. I like the night mode, it goes into standby by itself when there is more light in the apartment. This is economic. We breathe better. My asthmatic spouse is happy and baby arriving will grow in a healthy environment. A small flat spring air on one side of the device which can do a little better fan put it in a corner.
