Sophisticated materials and precision engineering allow Blueair to clean indoor air without the noise associated with less advanced units. On the lowest setting, the units emit no more sound than a desktop computer.

To achieve exceptionally quiet operation, Blueair¹s patented HEPASilent™ filter technology traps particles two ways: with mechanical and electrostatic filters. This combination creates a filter system through which air flows freely.

Most air cleaners require a powerful, noisy fan to pull air through densely packed filters. Since air passes easily through Blueair filter media, the fan doesn't have to work as hard or as loud. Even the housing is designed with quiet operation in mind, replacing sound-sonant plastic with noise-muffling steel.

surround air

Instead of discharging a windy stream of filtered air, the Blueair 501 diffuses air gently through an area six times greater than the average air cleaner. Operating on its lowest setting, Blueair produces virtually no noticeable draft, while still providing an exceptional air exchange rate.

Blueair's SurroundAir™ system achieves peak performance without annoying drafts by drawing in dirty air from the sides and bottom, moving it through a less dense filter media, and releasing clean, filtered air from the sides and top.