This air purification system boasts the new HEPASilent technology which is far-more effective than the HEPA purifying system. HEPA (or high efficiency particulate air) filters use a one micrometer-thin, intricately woven mat of polypropylene fibers layered multiple times in order to increase surface area, capturing the smallest pollutants and particles easily. This same technology was even used during the Manhattan Project to rid the air of radioactive particles. But the Blueair 402 Air Purifier & two-stage HEPASilent filtration provides more purification since it includes the same features and mechanical filters the latter has, plus additional electrostatic filters that ionize the particles themselves rather than the filter material, increasing effectivity and efficiency.
Environmentally friendly, the nontoxic polypropylene filter is very hardy and durable, ensuring that no fibers and harmful particles from the fabric itself would be discharged into the air. When the used fibers eventually decompose, the byproducts simply convert into carbon dioxide and water. Being waterproof itself, the plastic is resistant to bacterial, viral and mold propagation since there is no water to promote growth.
As the name suggests, the Blueair 402 Air Purifier & HEPASilent technology is quiet to the extreme. To ensure that no noise pollution is exchanged for the air particles, the unique combination of mechanical and electrostatic filters attracts the ionized pollen, pet fur, dust mites and other airborne particles, significantly reducing the fan’s effort. Most of the work is actually passive, as the particles themselves simply diffuse into the fabric. The noise reducing steel casing also pushes it towards quiet operation.
Although it is a relatively small air purifier, it can clean rooms as large and wide as 365 square feet. 99.95% of all allergens and particles are assured to be removed. Its extremely-thin filter and large, almost folded surface provides layers and layers of purification area. It doesn’t need to use up too much power with the fan unlike other air purifiers that blow stronger, creating more noise. The SurroundAir system gives it maximum performance by gathering air from the bottom, corners and sides, filtering it, and then giving out fresh, clean air to the sides and top. When on its lowest setting, it is virtually silent and there is no noticeable blowing, but it still performs exceptionally well.
Replacing the filter is no chore as you only need to take out the old filter once every six months in a process that does not take more than 30 seconds.
An award-winning product from Sweden, it is the best air purification system that the market can offer. Clean, efficient, safe and easy to use, would you want anything else with your money?