answersLogoWhite

0


Best Answer

There are simply fans (usually containing a means of heat in northern climes) which introduce outside air into a space. Typically, to compensate for air lost due to exhaust in areas such as kitchens, locker rooms, manufacturing areas etc.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do make up air units work?
Write your answer...
Submit
Still have questions?
magnify glass
imp