darkroom louvers are a way to get fresh air in without light leaks
very small compared to pvc fresh air vents
im tryin to think of the strongest yet smallest material i can use to make one
hope this helps:stoned:

pics are from crazywill
texas grass Reviewed by texas grass on . HydroHut DIY I'm on a mission. I'm interested in building a homemade Hydrohut. Please submit your ideas & pictures. How can I create a light proof intake duct for fresh air ? I would assume I would need to make all holes light proof...... Rating: 5