The human body can only prevent larger particles > 10µm (micrometre); smaller particles can break the guard and enter the body, even depositing on the vascular walls. So it is much more important to have ultra-fine particles eliminated. Airdog X5 deals successfully with ultra-fine particles>14.6nm (nanometre)and purifies the air by killing bacteria/viruses and collecting airborne particles. Traditional HEPA air purifiers only filtrate particles > 0.3µm and leave all kinds of particles on the filters.

Airdog TPA uses an advanced electronic design built around safety. The power consumption of Airdog is equivalent to a small light bulb. It has high voltage inside but very low current in the order of micro-amps. The high voltage runs on direct current to avoid any possible electronic perturbation.

a. Collecting plates in Airdog TPA is washable and reusable, so no more spending on HEPA filters and others.
b. Composite catalyst gauze is reusable, you may put it directly under the sunlight for 1~2 hours to refresh it. However, some customers might be very sensitive to any smell and might have to change the composite catalyst layer every 6-24 months to refresh the smell. The cost of the catalyst layer is only a small fraction of the cost of HEPA.

The best part of Airdog TPA air purifier is that you could see the effect by your own eyes! You will notice the AQI (Air Quality Index) number decreasing when the air purifier is on. Also, after using Airdog TPA for a week, you can actually see many of the pollutants absorbed on the collecting plates when you take the plates out to clean.