How Air Purifiers Work

As an Amazon Associate I earn from qualifying purchases. Learn more.

We all love fresh and clean air. In the current world that we live in, we take in a lot of dirty air. Increased industrialization and air pollution is the main cause of this problem. Destruction of the environment and mining of quarry materials is also another leading cause. In urban areas, the situation is even more complicated. This is due to improper waste disposal mechanisms, and also congestion. Combustion of waste products releases toxic air to the environment dirties the air too.

The most unfortunate thing is that this air finds its way to our bodies. It is dangerous to inhale such air. This, however, cannot be easily avoided. The only way to prevent yourself is by use of air purifiers. So how do air purifiers work? What do they do? Do they work? How effective is it in making the air clean? What is the average cost of the air purifier? How long does it last before losing effectiveness? To find out more, go through this article. It is so packed with all the information that you need to know about the air purifier. Carefully go through it for more information.

What do air purifiers do/how do they work?

Its main purpose is to purify/remove contaminants from the air in an enclosed room. This is meant to improve the air quality inside the room. Inside a room are many things such as food in the freezer, dirty utensils, dirty laundry, etc. All these can easily contaminate the air in the house. Such air may not be so healthy for breathing in. It makes the room to smell stuffy and sickly. Air purifier, therefore, seeks to arrest this situation by removing the particles in the air. It makes the house smell fresh and clean again.

It is usually composed of a single filter or even multiple filters and a rotating fan. The work of the fan is to suck in the air and circulate it in the purifier. As air travels inside this filter, any particle and pollutants are arrested. The clean air is then pushed back to the environment of the house. Since the filters capture and maintain these particles, they need to be replaced quite often. They are mostly made of fiberglass, paper or even a mesh. If they are not replaced, the efficiency of the purifier declines with a greater margin.

For the air purifier to work well, you often need to change the filters, how often should you do?

We have to appreciate the fact that there are varied types of air purifiers. Not all should have their filters replaced. Some filters are designed to be reusable. This means that they just need to be washed. It, however, means that maintenance should be carried out quite often. However, these types of air purifiers are not so effective. Washing of the filters should be carried out as often as possible. This is especially if the purifier is in constant use.

For those that have filters that are not reusable, they need to be changed as often as possible. The frequency of replacing the filters is fully informed by the frequency and the length of use of the air purifier.

Should not replace the filters, it will eventually stop functioning and may even release the captured particles into the room. The air from it when not replaced may even be more dangerous than the unpurified air.

How often should the air purifier work?

The air purifier should be in progress when the air in the room is not “so clean.” Depending on the cleanliness or the uncleanliness of the air in your room, the decision to let it work comes from that. If the air gets frequently contaminated in the house, then the purifier should be in use quite often.

On the other hand when the air is somehow fresh, then the purifier can just be switched on a couple of times. It doesn’t need to be switched on all the time even when the air is not so fresh in the house. Once the purification has taken place, the fresh air produced can last for sometimes. Eventually, it will be contaminated again, and this is the time when you need to clean it again.

What are these particles that the purifiers are supposed to work on?

There are many particles in the environment. They are so tiny that they are not visible to the naked eye. Nevertheless, they exist. The air purifier s supposed to capture:

  • Pollen from flowering trees and plants.
  • Dust – usually put to the air by wind, farming, etc.
  • Smoke from burning items such as the burning waste. Smoke is also emitted by machinery such as vehicles, heavy earth moving machines amongst others.

On the flip side, air purifiers do not capture contaminated gases. Indeed if you want more fresh air, you should invest in an absorbent, besides the air purifiers.

Before buying an air purifier, what are the factors to consider?

As stated earlier, there are various brands of air purifiers. The difference comes with the manufacturers and the preferences of the users. However, a quality air purifier should possess the following qualities:

  • Check for online ratings. This is not a guarantee of quality, but at least it informs the choice of purchase. The higher the rating, the better the quality and vice versa. A good one should be able to capture the items listed above with accuracy and with precision.
  • Size of the purifier. Always choose a model that is designed to work for a larger area. This will prove to be quite efficient with operations and the noise produced.
  • It should possess a standard mark of quality from the relevant certifying bodies. This provides you with the assurance that the purifier has been tested and proven to be effective.


Air purifiers are created to help us have clean fresh air in the room setting. There are many designs and brands all bearing different features but works on a single purpose. Purifiers can capture particles from the environment but do not “capture” gases. Absorbents should be used instead. Filters in the air purifiers need to be replaced often, failure to which effectiveness declines. Always go for the best rated for best results.

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.