The function of an air purifier is to purify the air surrounding it.
This is simple to understand but how does it really work?
Here’s the deal.
I have put up an infographic to illustrate how an air purifier works below.
Every air purifier is built with a fan in it and the purpose is to run the fan and pull the surrounding air into the air purifier.
Once the surrounding air is pulled into the air purifier, it will go through several layers of filters and the output from the filters is basically clean air.
There are so many benefits of clean air to your health and you certainly do not want to miss that.
Hence, the key technology here is the filters where each filter will filter certain elements that contribute to polluted air.
In general, below are the common types of filters that you will find in an air purifier.
- Pre-filter – Used to remove large particles like dust, pollen, and hair. This layer is usually washable and it is advisable to check the pre-filter from time to time to see if there’s a need to wash or not.
- HEPA (High-efficiency particulate air) filter – Used to remove smaller particles that are bigger than 0.3 microns which can’t be seen using a naked eye.
- Carbon Activated filter – Used to trap bad odors, VOC, and cigarette smell.
- UV-C filter – Used to kill bacteria and viruses.
As a result, the filters play a very important role in an air purifier.
If the filter is not performing well, you will still end up with polluted air even you have an air purifier.
As for the fan, it is only important when you have a concern in the coverage area of the air purifier.
The fundamental applies here, the more powerful the fan is, the bigger the coverage area of the air purifier.
This is basically how an air purifier works and hope you find this information useful.