lightproofing exhaust

Discussion in 'Grow Room Design/Setup' started by billigreen, May 22, 2010.

  1. so today i hung black and white polly to lightproof my closet door. i cut two holes, one for exhaust and one for intake. i now notice that the ducting is not completyly lightproof. i was wondering what other people have done to keep good air flow and block the light?
  2. get lightproof ducting, flat black interior and use bends/elbows
  3. this might be a cheap solution:

    grab a large cardboard box, on one of the sides cut a whole the size of the exhaust fan and attach to the fan... a cardboard elbow.

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