Our unique HEPASilent™ filtration technology allows our filters to be less dense. Less dense filters require less air pressure— resulting in quieter and more energy efficient air purifiers.

In addition to removing gases and odors, SmokeStop™ filters are highly efficient in eliminating airborne particle pollutants from your home, including allergens, pollen, dust, mold, pet dander, viruses, and fine smoke particles.

The filter structure traps even the smallest particles and resists clogging to maintain maximum airflow.

This filter is recyclable, so the only thing you’re adding back into the environment is clean air.

Free of chemical additives, this filter uses pure, high-porosity coconut carbon to remove odors. Filter fibers resist bacteria and mold growth.

To maintain optimum performance, we recommend changing your filter about once every 6-months when used 24 hours a day.

This filter is compatible with the following Classic family models: 501, 503, 505, 510, 550E, 555EB, 580i, 601, 603, 605, 650E and 680i.

Classic SmokeStop filters contain carbon which is extremely efficient at removing both particle and gaseous (odors, exhaust, smoke odors, and chemicals) pollutants from the air. Whereas Classic Particle filters are highly efficient in the removal of particle pollutants like pollen, dust, mold and viruses.

No, Blueair filters are less dense than traditional HEPA filters, allowing our air purifiers to be quieter and more energy-efficient. Instead of HEPA filters, we use a combination of electrostatic and mechanical filtration that we call HEPASilent™ technology to achieve the same level of filtration efficiency – with less energy and noise.