2 rooms sharring 1 filter and ventination?

I have 1 big room that I want to devide. It has everything including the 1000 watt light installed already. Air scrubber and ventination and everything. I have 1 awesome grow in it so far but my veg cabnet has to go. Is there a easy way to devide the room and make 1 room light tight while still sharring the air conditioner and carbon scrubber and existing ventilation?

I guess I need some light tight vent ideas to vent from 1 room to another.

Thanks

Grasshopper

Seal the rooms (timber frame and black/white pvc or plasterboard) ... add a fan or 2 and lengths of ducting at length passing thro the divide to prevent light seepage and simple circulate the air between the 2 rooms and let the room with the scrubber/filter/outlet in do the rest. make sure the filter/air outlet is not in the same divide as the air con.

Ha...make it sound sooooooo easy....Im thinking something like this. I keep looking t darkroom vents on google. They are expensive...but so is good weed and we cant do without that...so...I like the idea of plastic for temporary reasons.

What is black.white pvc? Is this like visqueen?

grasshopper

It is called panda film or black & white poly.

As for access you can also buy self adhesive doorway zippers which you can place on the black and white where you need it. (A fly in the wall )
Darkroom Zippers = £6
Darkroom rotating doorway = A shit load more than £6 even on Ebay.
Go to any hydroshop online and they sell these zippers, also look at SHEETING at these stores and you'll see quite a few variations on the Black and white poly sheeting.