I am looking to filter my exhaust so i can cut with the windows closed, it seems this is possible with carbon filters, has anyone made a home-brew filter using the carbon hydroponic filter tubes - these are pretty cheap, have a post-filter cloth on them and i should think a box with two or three 4-5" units on them would suit a 6" blower from the laser?

Better to use multiple smaller filters as the 6" ones are expensive and with multipole units you get more surface area easily/cheaper.

My plan is to build it under the laser in the empty space between the legs.

Any thoughts??

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