Equipment like fans, transformers and extractors create a constant humming sound. To prevent neighbors from complaining, you should sound proof your grow room by hanging equipment with rubber hoses and rings.

Learn more about safely setting up a grow room:

• Build An Indoor Marijuana Grow Room
• Create The Best Climate For Marijuana Grow Room
• Growing Marijuana Safely
• How To Setup A Low Budget Grow Room?

More grow room definitions:

Grow room | Grow tent | Grow box | Security | Anti detection foil | Pond liner | Green house