![]() ![]() Since most masks offer only particle filtration, a carbon filter is a useful addition. On top of this, activated carbon is generally considered safe and is not dangerous ( WebMD). It has great filtration capabilities, and as such it is often used for water treatment, pollution filtration, gas purification, and more. It is ineffective against non-organic chemicals.Īctivated carbon is used for hundreds of different purposes in the modern world. In general, activated carbon will only filter organic (carbon based) chemicals. It is most effective at filtering volatile organic compounds (VOCs) and odours. This is why the surface area of activated carbon is so vital.Īctivated carbon (also called activated charcoal, or active carbon) is used to adsorb gases from the air (among many things). This is not a mistake! Rather than absorbing gases, activated carbon actually adsorbs them, meaning that they stick to the surface. You may have noticed that I am using the word adsorb, and not absorb. In short, activated carbon is capable of adsorbing vast amounts of gas. In fact, with the rough textured surface and many pores, one gram of activated carbon can have an adsorptive surface area of 3000m² ( APS Physics). The activation process greatly increases the surface area of the carbon. Impregnating is often considered superior as it allows the carbon to maintain its surface area allowing for higher adsorption. The agent will either be mixed with the carbon or impregnated (the agent placed inside the carbon) ( Springer). The use of different agents will result in different performance and applicability of the carbon. The carbon can be activated with a variety of different agents. The charring is then treated further, developing interconnected pores (often microporous pores which are under 2nm in size) inside the carbon ( General Carbon). This is done by burning the carbon without oxygen, resulting in charring. Once a source material is found, the carbon must be activated. However, carbon filters can come from many other forms including nutshells, wood, coal, and petroleum ( Activated Carbon). ![]() This website assumes no responsibility for the accuracy of the information, which is subject to change without notice.Ĭarbon filters are made from many different forms of carbon. Furthermore, this information is not intended to replace medical advice from professionals. Readers are encouraged to confirm the information herein with other sources. Information on this blog is for informational purposes only. For more information, please refer to my affiliate disclaimer. If you notice an inaccuracies please let me know so I can update the article and keep it accurate. This post was written after a lot of research. Further, if you have any questions regarding carbon filters that weren’t covered in this post, please feel free to contact me or leave a comment on this post.įinally, I want to mention that I am not an expert on activated carbon. If you want to learn more about the more advanced filtration aspects of filters I recommend checking out this article on most penetrating particle sizes. In this article I will cover the basics of carbon (and activated carbon) filters, what they filter, how effective they are, and also what they don’t filter. With that being said, in this article I plan to look into exactly what carbon filters in masks do. Typically the stick to marketing language such as ‘military grade’ rather than actually explaining the purpose of such a filter. ![]() However, although all of these masks feature carbon filters, very few of them actually explain the benefits or downsides of using such a filter. You can even purchase replaceable that feature a carbon layer. More recently, masks such as Bloo Mask have implemented the technology in an even better way, making a mask that can greatly reduce odours. Masks such as Cambridge Mask have long advertised their use of activated carbon filters. ![]() Although not a new technology, activated carbon filters are a way that many brands are trying to beat their competition and differentiate their mask. This means that there are always new technologies being implemented in the field. With the incredible number of new masks reaching the market there are many brands looking to get competitive advantages. ![]()
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