Cool thanks mate

once setup as long as the walls suck in wards I guess?
just for your own knowledge you should know the difference between negative pressure / walls sucking in
& positive pressure = walls pushing out , there are pros & cons with both , you should do your own research but here is just a random google search , sorry if your already aware of this
" what are the pros and cons between negative and positive pressure in a grow tent "
https://www.agritechtomorrow.com/ar...ns-of-positive-vs-negative-air-pressure/14002
What is a Negative Pressure Grow Room?
Negative pressure is created when more air is being exhausted (removed from the space) than is being supplied. Because the pressure is lower inside the grow space than outside, it will create a suction effect which is useful for containing the air within.
Pros Of Negative Pressure in Grow Rooms
In cannabis applications, negative pressure is great for keeping things in, which makes it helpful for odor mitigation. While odor leakage may be minimized with this ventilation method, the air must still be properly filtered before being exhausted into the environment to maintain odor control compliance.
Creating negative pressure is particularly beneficial for home-growers using grow tents since isolating the air within the tent helps to make it easier to maintain the climate within the grow space.
Cons Of Negative Pressure in Commercial Grows
The suction effect of negative pressure will suck in the air from any air leaks or gaps. To minimize risk of contaminants, take special care to properly seal your room especially near doors, windows, outlets, and other potential gaps.
What is a Positive Pressure Grow Room?
When you introduce more air into your room than you remove, you create a positive air pressure. The pressure of the incoming air will force the old air out of the room through the exhaust fan, gaps in doors, windows, walls, outlet covers, and any other crack or opening.
Like with a cleanroom, positive pressure is used in grow rooms where the priority is keeping any possible germs or contaminants out.
Pros Of Positive Pressure in Grow Rooms
Positive pressure ventilation creates a barrier of entry for pathogens, pests, and other contaminants as the high pressure air will meet outside low pressure air with force
Cons Of Using Positive Pressure in Commercial Grows
On the other hand, positive pressure rooms can make it more difficult to mitigate odor pollution for cannabis cultivators. Carbon filters can help remove some of the odor from your exhaust air, but they are not 100% effective. If you are unable to properly clean your exhaust air, you may face complaints from neighbors, or worse, legal ramifications for failure to meet odor control compliance standards.