More and more types and brands of air purifiers attract customers’ eyes, people usually confused by the wide selection of air cleaners. You must know the usage of every filter like HEPA filter, activated carbon filter, and ozone generator, etc. Of course you better choose the model combine several filter and technologies in one. That’s the best way to clean more harmful pollutants like dust, pollen, pet dander, viruses and bacteria.

If you like to learn more then you can start your research with this website: And here you should pay attention to several features of air purifiers as followed:

1. Area coverage.

You have to clear of how large of your room, and then choose an air purifier with appropriate coverage. Just remember that the capacity of your air cleaner shouldn't be less than the actual size of the room.

2. Power efficiency.

You should know that your machine would keep working most of the time, make sure you know the power efficiency. Otherwise, you will pay large extra bills for your electricity.

3. Cost of replacement materials.

Some air purifiers don’t offer permanent filter, which means you have to change your filter every maybe 3 to 6 months. And the noise level also needed to check out. Hope these tips can help you to choose the best one for your home!