ASHRAE+62.1-2022+(1) - Page 022
Extracted Content
Table 6-2 Minimum Exhaust Rates
Occupancy Category
Animal Facilities
Exhaust Rate,
cfm/unit
Exhaust Rate,
cfm/ft [2] Notes
Exhaust Rate,
L/s·unit
Exhaust Rate,
L/s·m [2]
Air Class
Animal imaging (MRI/CT/PET) - 0.90 - 4.5 3
Animal operating rooms - 3.00 - 15 3
Animal postoperative recovery room - 1.50 - 7.5 3
Animal preparation rooms - 1.50 - 7.5 3
Animal procedure room - 2.25 - 11.3 3
Animal surgery scrub - 1.50 - 7.5 3
Large-animal holding room - 2.25 - 11.3 3
Necropsy - 2.25 - 11.3 3
Small-animal-cage room (static cages) - 2.25 - 11.3 3
Small-animal-cage room (ventilated cages) - 1.50 - 7.5 3
Arenas - 0.50 B - - 1
Art classrooms - 0.70 - 3.5 2
Auto repair rooms - 1.50 A - 7.5 2
Barber shops - 0.50 - 2.5 2
Beauty and nail salons - 0.60 - 3.0 2
Cells with toilet - 1.00 - 5.0 2
Copy, printing rooms - 0.50 - 2.5 2
Darkrooms - 1.00 - 5.0 2
Educational science laboratories - 1.00 - 5.0 2
Janitor closets, trash rooms, recycling - 1.00 - 5.0 3
Kitchenettes - 0.30 - 1.5 2
Kitchens—commercial - 0.70 - 3.5 2
Locker rooms for athletic, industrial, and health care facilities
- 0.50 - 2.5 2
All other locker rooms - 0.25 - - 1.25 2
Shower rooms 20/50 G,I 10/25 2
Paint spray booths - - F - - 4
Parking garages - 0.75 C - 3.7 2
Pet shops (animal areas) - 0.90 - - 4.5 2
Refrigerating machinery rooms - - F - - 3
Residential kitchens 50/100 - G 25/50 - 2
Soiled laundry storage rooms - 1.00 F - 5.0 3
Storage rooms, chemical - 1.50 F - 7.5 4
Toilets—private 25/50 - E, H 12.5/25 - 2
Toilets—public 50/70 - D, H 25/35 - 2
Woodwork shop/classrooms - 0.50 - - 2.5 2
NOTES: A Stands where engines are run shall have exhaust systems that directly connect to the engine exhaust and prevent escape of fumes. B Where combustion equipment is intended to be used on the playing surface, additional dilution ventilation, source control, or both shall be provided. C Exhaust shall not be required where two or more sides compose walls that are at least 50% open to the outside. D Rate is per water closet, urinal, or both. Provide the higher rate where periods of heavy use are expected to occur. The lower rate shall be permitted to be used otherwise. E Rate is for a toilet room intended to be occupied by one person at a time. For continuous system operation during hours of use, the lower rate shall be permitted to be used. Other wise the higher rate shall be used. F See other applicable standards for exhaust rate. G For continuous system operation, the lower rate shall be permitted to be used. Otherwise the higher rate shall be used. H Exhaust air that has been cleaned to meet Class 1 criteria from Section 5.13.1 shall be permitted to be recirculated. I Rate is per showerhead.
20 ANSI/ASHRAE Standard 62.1-2022