Why Do Masks Use Carbon Filters?
Activated carbon (also called activated charcoal, or active carbon) is used to adsorb gases from the air (among many things). It is most effective at filtering volatile organic compounds (VOCs) and odours. In general, activated carbon will only filter organic (carbon based) chemicals. It is ineffective against non-organic chemicals.activated carbon pellets for filters
Activated carbon is used for hundreds of different purposes in the modern world. It has great filtration capabilities, and as such it is often used for water treatment, pollution filtration, gas purification, and more. On top of this, activated carbon is generally considered safe and is not dangerous (WebMD).
Since most masks offer only particle filtration, a carbon filter is a useful addition. While this by no means makes a mask effective against gases, it does add an extra layer of protection that is welcome. Further, it can be quite effective at reducing smells that reach the wearer.wyactivatedcarbon.com
Due to the nature of filtration (through adsorption), activated carbon filters do have a limited lifespan. Once the surface area is full, they will no longer be able to remove pollutants from the air. While carbon can be reactivated, it’s normally impossible when they are fitted in a filter or mask. |
