1. #1
    I am looking to filter my laser 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 multiple 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??

  2. #2
    That sounds like it should work, would it be worth running the exhaust through a couple of re-usable oiled reticulated foam filters to reduce the level of particulates first?
    You think that's too expensive? You're not a Model Engineer are you? :D

  3. #3
    Yes would need pre-filter for the big muck, was looking at fitting a HEPA filter.

  4. #4
    I once worked in a business which used electrostatic filters to take smoke particles out of air, I don't know if it's a viable home shop option.
    You think that's too expensive? You're not a Model Engineer are you? :D

  5. #5
    We used to have those units at work when the canteen was smoking permitted, they did work surprisingly well but were pretty big.

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