So I have a storage/utility room. High humidity (Indonesia). Dimensions approx 3.3 x 3m x 3m . It's still under construction, and there are no windows, just a door. Material is AAC (lightweight concrete) 60cmx20cmx10cm blocks to three walls, and red brick (dimensions maybe 20x10x5cm) to west wall.
There will likely be a washing machine in the room, maybe with integrated dryer.
I have an extractor fan (continuous: http://powerdiscount.co.uk/greenwood-cv100-constant-volume-continuously-running-extractor-fan-382-p.asp), which I plan to fit. But somebody pointed out there's no intake!
The room is obviously more-or-less square, and the walls adjoin (moving around clockwise) North: hall-way area, less airflow. East: outside, South: outside (but front of property and I'd prefer to avoid this, West: large open-plan room with very good ventilation to outside.
So it seems like if I extract the air out through the east wall then I need to suck air from the outside. So I need to put some kind of vent opposite on the west wall. What kind of thing should I be fitting?
Something like this? https://www.amazon.co.uk/M141-Marley-anodised-Aluminium-Louvered/dp/B009T5GOW0/
How much do I need?
The area adjoining is an office area, so sound from the storage room is not really a big issue.