Decibel Cancellation™ Technology

Because the charged particles stick to the filters more easily, we can use less dense filters, which require less air pressure to push air through. This means that Hisoair Air Purifiers can produce more clean air at lower fan speeds, which also makes them less noisy and less energy consuming.

20 years Exclusive OEM Manufacturer
Maximum Filtration,Minimum Noise

Hisoair's Decibel Cancellation™ Technology lowers 5-10 dB noise, and delivers a high Clean Air Delivery Rate (CADR) with the whisper-silent operation. A Hisoair air purifier works so quietly that you can sleep next to it. Sometimes, you might want to check whether it is working since there is almost no noise. And on its lowest setting, a Hisoair air purifier uses less electricity than a lightbulb.

No other air purifiers deliver such high performance on so many parameters, all at the same time.

Decibel Cancellation™ Technology

Decibel Cancellation™ Technology

HisoAir is the unique factory that owns the Air Flow Rate & Pressure Measurement Apparatus, the first 80m3 CADR testing chamber in China, which is CNAS approved. It enables us to develop Decibel Cancellation™ Technology and achieve the goal of reducing the noise to 44dB while the air volume is 1000m³/h. This is a revolutionary change to the air purifier industry, it makes Quiet Air Purifiers into reality.

To achieve such an effect of low noise, the R&D designer deducted hundreds of combined tests from materials, structure, frame, and the fan's location. And now we are proud to say that Nobody else on the market can make the machine such quiet as we do.

Silent Air Duct Design

Advanced two-sided air inlet & one-sided air outlet design of air duct creates double air volume to ensure high CADR performance even when the motor is not running at high speed.

Noise Reduction Material

We use the premium noise-reduced material surrounding the motor. By all these steps, we can lower the noise by about 10-15dB compared with that of other air purifiers.

Wind Turbine Technology

We use Forward-lean type centrifugal blower, which is smaller and less noisy. The motor doesn’t run to the limit, to keep a moderate speed and low noise .

Medical Grade Filtration Technology

New research shows Hisoair air purifiers removed 99.97% of the SARS-CoV-2 virus from the air in a one-time release multiple pass test in a small chamber, destroyed over 99% in a filter swatch level test in under one hour.


Medical Grade Filtration Technology

How do Hisoair air purifiers work? that uses free radicals—the same radicals used to destroy cancer cells—to break down pollutants at a molecular level, including viruses, bacteria, mold, ozone, allergens, and chemicals. with high-efficiency filtration and air quality sensors, Hisoair air purifiers can capture particles found in smoke, while detecting and destroying pollutants 1000 times smaller than the standard filters must meet to qualify as HEPA.

This unique of filtration technology effectively removes 99.97% of airborne particles down to 0.1 micron, trapping even the smallest viruses and microplastics in addition to dust, pollen, pet dander, bacteria and smoke. Activated carbon in our filters then removes odors, gases and VOC’s.

Blower Technology

We use Forward-lean type centrifugal blower, which is
smaller and less noisy. The motor doesn’t run to the
limit, to keep a moderate speed and low noise.

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