Airdog TPA® Technology: Washable Solution

HEPA filters are actually made of the same material as plastic bags. One HEPA filter is equivalent to at least 1000 plastic bags worth of plastic. On top of this, HEPA filters must be disposed of and replaced every few months. Airdog air purifiers, however, use TPA (“two-pole active”) filter that is washable instead of disposable. With these reusable, easy to clean collecting plates, you will save time, money, and more plastic from being discarded.

Airdog’s patented TPA (“two-pole active”) is an active filtration technology that generates a high voltage electric field to electrify and destroy harmful particles, attracting them to washable collecting plates. Airdog ensures that clean air is the norm rather than a luxury. 5 steps of purification and 3 layers of washable filters to eliminate up to 99.9% of harmful particles and toxins, including the tiniest PM 2.5 particles down to 0.0146 micron.

Journey To Clean Air

How TPA® Works


Aerodynamic Airflow 

The key to high performance

Dense HEPA filters catch particles in flowing air. When these filters become clogged, the air flow will be significantly reduced! Airdog's vertical absorption filters do not interfere with the airflow-in any way, eliminating clogged filters, resulting in a smooth, quiet, and highly efficient performance.

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Advanced Filtration 

TPA®️ Filters purify a much wider range than the traditional HEPA filter - from 0.0146 microns particles to PM 2.5 (smoke, exhaust, dust, pet danders), as well as larger particles (pollen, pet hair).

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HEPA filter collect pollutants such as pollen and dust, while TPA technology destroys these toxins and eliminates them from the air. If HEPA filters are not regularly replaced, they will cease to function as they were intended with. Pollutants that were once collected ofter escaping back into the air. Furthermore, when the temperature is warmer and humidity is in the air, mold and bacteria easily grows on HEPA filters causing bad odors and bacteria to enter the air. Airdog's washable filter solves these problems by creating an easy clean system that is safe and effective. Just wash under a faucet with detergent like dishes and they are ready for reuse.


The term CCM (cumulative cleaning mass) describes how much pollutants a HEPA can trap before it loses 50% efficiency in the cleaning process. For a typical HEPA air purifier, lab researchers have quantified 45 cigarettes worth of smoke will lead to failed filtration. In comparison, after 440 cigarettes, about 10x more than HEPA’s 45, Airdog’s cleaning capacity only drops – 0.2%! That means Airdog filters take 10x more smoke and stay 50x more capable in cleaning capacity! Now that’s a huge difference!


Since mold and bacteria are likely to incubate on HEPA filters, you need to change those very expensive filters every 6 months. Spending money on these replacement filters can easily cost $500 per year, and better quality HEPA filters cost even more. Airdog air purifiers require no replacing of filters or any other components. Simply wash the filters and put them back to use, saving you significant time and money.

Environmentally Friendly

With the waste reaching appalling levels around the world, every way we can reduce non-biodegradable garbage matters for the planet. In addition to the improved performance of TPA washable filters, they also eliminate the need to throw away HEPA filters made of fiberglass and plastic. Airdog is committed to improving the air inside while also helping reduce impacts on the world outside.

Whisper Quiet

You will hardly know it's there. The noise level of Airdog air purifiers range from 22dB (sleep mode) to 57dB (turbo mode) and average at 34dB which is half of traditional air purification systems. This is about as quiet as a soft hum, and definitely more quiet than your neighbors dog.

Smart Control

With our Auto Mode button, you can allow Airdog to run 24/7 all by itself! Auto Mode automatically adjusting the fan speed according to the pollution levels that the AQI (Air Quality Index) is reading. This feature not only makes monitoring your room's air quality easy to do, it also saves you money on energy bills and gives you peace of mind!

Proven by Labs

Data from professional, independent testing institutions