What Are AOC Carbon Filters?

AOC carbon filters are activated carbon air filters that are sometimes used in air purifiers.

They are very effective in removing odors from the air, gases, and even humidity, but they are less effective when it comes to disinfecting the air from pathogens or other thin air pollutants.

What Are AOC Carbon Filters?

What Are Activated Carbon Filters?

Activate carbon filters are very simple: they are made of a bed of carbon.

Because this is a very porous material, when the air flows through it, a lot of particles (like smells or gases) remain trapped in its pores, and they are therefore removed from the air. 

What is carbon?

Carbon is that black matter that we all associate with combustion. In the case of filters, however, we are speaking about activating carbon, so how is carbon activated?

Read: How Often To Change The Air Purifier Filter?

Read: What Makes A Good Air Purifier?

Read: Air Quality Index


How Is The Carbon Activated?

Activated carbon is just common carbon that undergoes some additional processing to make it better at trapping gas molecules.

First, it is injected with hot air, carbon dioxide, and steam so that a lattice of tiny pores in the carbon is created.

This process is capable of increasing the surface area so that there are many more places for molecules to become trapped and makes the carbon far more effective as a filter.


The Absorption Process

The way activated carbon removes gases from the air is called adsorption.

While absorption removes the substance from another by absorbing it into the structure of the absorbent (like a sponge) with adsorption, the pollutants stick to the outside of the carbon; they are not absorbed within its structure.


Effectiveness Of Activated Carbon Filters

Carbon filters are very effective when it comes to removing smells or gases from the air.

As we’ve mentioned, they are less effective when you need to remove small particles, like pathogens.

Activated carbon filters can’t be mounted on medical-grade air purifiers because those require that a filter is capable of removing 99,99% of particles, and a carbon filter can not.


Are Carbon Air Purifiers Worth It?

There are other options that are more effective as air purifiers. However, activated carbon air purifiers are among the cheapest options you can find.

It all depends on what you are looking for: if you need an air purifier for a kitchen, a toilet with no windows, or a room for smokers, then activated carbon air purifiers are the best option because they’d be effective and they’d make you save tons of money.

But if you have allergies, you live in a polluted area, or you are worried about bacteria or viruses, then you need another type of air purifiers like HEPA or UV purifier.

Read: 10 Best Lowes Air Purifier


Conclusion

Activated carbon has been long used as a filter, not only to purify the air.

Today, there are other more effective options, but carbon filters are still around because they are more affordable and still effective for certain purposes.


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