MaDz Well-Known Member Mar 29, 2009 #1 Hi, I will build a carbon filter and I want to know if it's better to have a negative room pressure or Positive... I also want to know if I should put the filter on the intake or the outake of the fan... Tell me if it could work: Attachments Untitled-1.jpg 97.2 KB · Views: 11
Hi, I will build a carbon filter and I want to know if it's better to have a negative room pressure or Positive... I also want to know if I should put the filter on the intake or the outake of the fan... Tell me if it could work:
A angelsbandit Well-Known Member Mar 29, 2009 #2 Negative pressure - that way any air leaks will be into your grow area and not out which would allow odors to escape.
Negative pressure - that way any air leaks will be into your grow area and not out which would allow odors to escape.
