1st time grower, grow room set up.

hey everybody im new to this site and growing medical marijuana, but i have to been snooping around and reading a ton of stuff and growing tips and grow room set up.
I havent yet grown my first plant but i am really eager to. I am planning on buying supplies online from http://www.drgreenthumbshgs.com and getting my carbon filter and inline fan from amazon.
So im planning on building a 3x3x6 grow room and having it sealed and air tight so there's no smell.
My biggest question is my airflow. Im planning on cutting two holes in the plywood and having a carbon filter on the first hole as an intake, and putting a inline fan and a carbon filter together for an exhaust. and having one or two fans running inside at all times.
I will be growing 2 plants at a time under a 5 gal dwc system and they will be running under a 600w hps. What nutes should i buy also?
Will my set up work? Any big flaws I need to fix before i build it?
here's a sketch of what my room will look like. (im really bad at drawing).

For your intake, you don't need a carbon filter. Maybe a HEPA filter to get rid of any dust or bugs entering the room. Also, make sure your exhaust fan is at least 3x as strong as your intake to create negative pressure.

For nutes i would suggest starting simple. Maybe the General Hydroponics 3-Part or the Advanced Nutrients PH-Perfect 3-Part(Same price). These will get you off to a good start.

JayJammer said:

For your intake, you don't need a carbon filter. Maybe a HEPA filter to get rid of any dust or bugs entering the room. Also, make sure your exhaust fan is at least 3x as strong as your intake to create negative pressure.

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For my exhaust I was planning on a 200cfm inline and only have it running while the lights where on to keep the air temp down. when its in it's dark cycle do you think 2 small fans will be enough? and when there is less pressure will air leak out and smell if its a hepa filter for the intake?
thank you for replying i cant waite to grow haha.

Lampy said:

For my exhaust I was planning on a 200cfm inline and only have it running while the lights where on to keep the air temp down. when its in it's dark cycle do you think 2 small fans will be enough? and when there is less pressure will air leak out and smell if its a hepa filter for the intake?
thank you for replying i cant waite to grow haha.

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If you have an air-cooled hood you can duct all of it together. The fan will pull air through some ducting, through your hood to cool the bulb, and finally through a carbon filter to clean it before exhausting it out.

I would suggest running your exhaust constantly during your bloom phase.