Medico - you seem real organized until it comes to the ventilation part.

Imagine, for a moment, that you wanted to build an oven. How differently would you design it from your grow-box plans? I'm not trying to give you a hard time. I'm just trying to help you visualize the problems you are facing. :thumbsup:

I would suggest that you hook your fan to push air through a cooled hood then out to exhaust. This will vent your cab and cool your light at the same time.

Put a carbon filter on one end of the vent line or the other. It won't make a whole lot of difference. If you can't afford to buy one, there's a great DIY on this forum and the filter is very easy and inexpensive to make.

You also want an oscilating fan inside the cabinet to blow the air around. Mj loves a breeze!

Good luck! Enjoy your project! :thumbsup:

PC :smokin:
PharmaCan Reviewed by PharmaCan on . New Growroom - Any Advice? This is going to be my first growroom for the magical cannabis! Please respond with any advice. Strain: Afghan from marijuana-seeds.nl Room: It will be 3' deep, 3' wide, and 5' tall. The walls will be a plywood covered in 1 mil Mylar. Lighting: I will be using a 400W HPS ballast with a GrowBright 400 watt MH Conversion Bulb for veg and HTG Supply 400w HPS Bulb for flowering. The reflector will be a Euro reflector. hhttp://htgsupply.com/viewoption.asp?ID=124 Rating: 5