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General => General Technical Chat => Topic started by: engineheat on April 21, 2021, 08:12:19 pm

Title: How does active carbon filters work?
Post by: engineheat on April 21, 2021, 08:12:19 pm

I wonder how the active carbon filters found in respirators work. How are they built/designed to filter air while allowing air to pass through? Are the carbon particles suspended in a membrane? Or are the carbon particles packed into a tube that air flows through?
Thanks

Title: Re: How does active carbon filters work?
Post by: thm_w on April 21, 2021, 08:40:06 pm

https://science.howstuffworks.com/gas-mask2.htm
https://en.wikipedia.org/wiki/Carbon_filtering
https://molekule.science/activated-carbon-air-filter/

Title: Re: How does active carbon filters work?
Post by: Alex Eisenhut on April 21, 2021, 09:01:11 pm

https://en.wikipedia.org/wiki/Adsorption

That's the principle.