Protect your loved ones indoors and outdoors
CompAir measures and displays the air pollution that matters most to you – inside your home, schools and public spaces.
We'll tell you how to improve your air quality with simple steps that often cost nothing at all.
If there is a construction project or heavy industry in your area, you may be able to get one of our simple-to-use air pollution monitors free of charge.
All you need is a smartphone.