Blueair Sense Air Purifier - Warm GrayOverview Innovated with love in Sweden, the Blueair Sense employs radically different design, new technology and eco friendly materials for an out of the box experience beyond cleaning allergens, viruses and other airborne pollution from the indoor air we breathe. Blueair was founded on the belief that everyone should be able to enjoy clean air indoors, at home or in the workplace. We have become a global authority on how to remove indoor air