1. Are air purifiers and air filters the same thing?
First, it’s important to understand that an air purifier mainly functions to trap large particles such as dust, pet hair, and smoke particles within its filter, preventing them from circulating in the air we breathe. Therefore, an air purifier serves primarily as a first line of defense against larger airborne particles and does not filter out smaller particles, including viruses, which can pose a greater risk to health.
2. When we are in a building and not exposed to dust and smoke, are air purifiers or dust filters still necessary?
The fact is, the U.S. Environmental Protection Agency (EPA) has revealed that indoor air can be up to five times more polluted than outdoor air. This is because indoor air does not circulate as freely as outdoor air, allowing pollutants to accumulate and persist inside homes or buildings rather than dissipating.
3. Can air purifiers help prevent illness?
Air pollution can trigger respiratory infections or worsen the symptoms of asthma. However, a high-quality air purifier equipped with virus-killing technology and the ability to reduce indoor pollutants can lower the risk of illness and contribute to better overall health.
4. Can air purifiers kill viruses?
When it comes to virus elimination, some air purifiers can only trap viruses in their filters without actually killing them. In contrast, AirDog’s patented TPA Technology features a 40,000-volt electric curtain that can destroy over 400 virus strains, leaving the filter to accumulate only the remains of dead viruses, rather than live ones.
5. Can air purifiers clean themselves?
Most air purifiers use HEPA filters, which cannot be washed or dusted off manually and may harbor accumulated pathogens. In contrast, Airdog’s TPA Technology is uniquely designed so that the filter can be removed, cleaned, and reused throughout the purifier’s lifetime.
In recent years, many people have been exposed to PM 2.5 pollution, leading some to wonder whether having an air purifier at home is truly necessary. In reality, pollution often occurs in short bursts, and most homes already have air conditioners that act as basic air filters. Today, we’ll clarify these doubts and provide a clear understanding for everyone.



