Either a fitted unit or more commonly a separate portable fan (similar to a desk fan) with a handy hang down cord for easy access. Can be placed on a mounted bracket on the wall or fitted into the wall with external access.
What size of room is it suitable for?
Smaller rooms such as bedrooms or home offices. 100 sqm.
How much does it cost?
Under £25 - £25 and £50
How is it powered?
Usually mains although portable battery powered fans would work in awkward positions.
