The energy-efficient design saves you money, and the whisper-quiet operation lets you sleep soundly. Blueair 402 air purifiers effectively remove pollen, dust mite allergen, pet dander, mold spores, lint, and more from your home or office.

HEPASilent technology, exclusive to Blueair, combines mechanical filtration and electrostatic filtration for highly effective air cleaning that outperforms standard HEPA, capturing 99.97% of the tiniest particles at 0.1 micron. A layer of activated carbon adsorbs small particles and chemicals. 

HEPASilent technology allows extremely quiet operation. The low-density filters clean large volumes of air more quietly than any other air purifier. On the lowest setting, Blueair air purifiers are about as quiet as the average desktop computer. 

Exclusive SurroundAir technology draws dirty air in from all sides and gently diffuses air through an area six times greater than the average air cleaner.

EnergyStar rated low energy consumption saves you money on your power bill. In fact, it costs about the same to clean the air in your home as it does to power a single light bulb.

Optional Smokestop Filter has more activated carbon for enhanced removal of smoke, odors, and gases. 

All Blueair products are environmentally aware and offer exceptional performance without polluting the environment. Blueair replaces standard filters (which can harm the environment) with safer, nontoxic polypropylene filters. In addition, Blueair air purifiers are coated with a special powder finish that produces no chemical off-gassing. The polypropylene filters also resist contamination from mold, bacteria, and viruses. 

Unlike many electrostatic air cleaners, Blueair 402 air purifiers are safe for allergy and asthma patients because they release no ozone by-products. 

Easy to Use & Maintain. Plug it in, select the speed setting, and forget it. To clean, simply wipe the steel exterior. When the filter needs to be replaced (every six months), just open the lid, lift the old filters out, and drop the new ones. No screws, no tools, and barely any time required. 

The award-winning design is sleek and stylish, and the steel housing is durable and easy to clean.

Effective for room sizes up to 450 square feet.