Typical Natural Air Change Rates

Offices		2 per hour
Factories
	- light work	2 per hour
	- heavy work	3 per hour
Hotels - Pubs		3 per hour
Assembly Halls		3 per hour
Warehouses		2 per hour

Remember to add any forced air changes due to ventilation.

For more information contact Mearsecroft
Created and updated by Spiders Webs