Ventilation Techniques

Can Modification Of Ventilation Be Used To Increase Safety In Enclosed Spaces?

The ventilation capacity of an enclosed space is often referred to using
"outdoor air changes per hour" or
Modifying the ventilation capacity, air filtering and the use of UVGI in a room, can be an easy way of lowering the risk that a person in that space will inhale viral particles and get infected.

Spaces without forced air heating/air conditioning (HVAC)- (0.8-1.3 ACH)
- Open a Window!! (To increase ACH. Adding a fan will also increase ACH.)
- Install an portable Air Purifier (Preferably with HEPA filters and UVGI capabilites)

Spaces with Forced Air Heating/AC systems

Building / Room	Air Change Rate - n - (1/h)
All spaces in general	min 4
Assembly halls	4 - 6
Attic spaces for cooling	12 - 15
Auditoriums	8 - 15
Bakeries	20 - 30
Banks	4 - 10
Barber Shops	6 - 10
Bars	20 - 30
Beauty Shops	6 - 10
Boiler rooms	15 - 20
Bowling Alleys	10 - 15
Cafeterias	12 - 15
Churches	8 - 15
Classrooms	6 - 20
Club rooms	12
Clubhouses	20 - 30
Cocktail Lounges	20 - 30
Computer Rooms	15 - 20
Court Houses	4 - 10
Dance halls	6 - 9
Dental Centers	8 - 12
Department Stores	6 - 10
Dining Halls	12 -15
Dining rooms (restaurants)	12
Dress Shops	6 - 10
Drug Shops	6 - 10
Engine rooms	4 - 6
Factory buildings, ordinary	2 - 4
Factory buildings, with fumes or moisture	10 - 15
Fire Stations	4 - 10
Foundries	15 - 20
Galvanizing plants	20 - 30
Garages repair	20 - 30
Garages storage	4 - 6
Homes, night cooling	10 - 18
Hospital rooms	4 - 6
Jewelry shops	6 - 10
Kitchens	15 - 60
Laundries	10 - 15
Libraries, public	4
Lunch Rooms	12 -15
Luncheonettes	12 -15
Nightclubs	20 - 30
Machine shops	6 - 12
Malls	6 - 10
Medical Centers	8 - 12
Medical Clinics	8 - 12
Medical Offices	8 - 12
Mills, paper	15 - 20
Mills, textile general buildings	4
Mills, textile dye houses	15 - 20
Municipal Buildings	4 - 10
Museums	12 -15
Offices, public	3
Offices, private	4
Paint shops	10 - 15
Paper mills	15 - 20
Photo dark rooms	10 - 15
Pig houses	6 - 10
Police Stations	4 - 10
Post Offices	4 - 10
Poultry houses	6 - 10
Precision Manufacturing	10 - 50
Pump rooms	5
Railroad shops	4
Residences	1 - 2
Restaurants	8 - 12
Retail	6 - 10
School Classrooms	4 - 12
Shoe Shops	6 - 10
Shopping Centers	6 - 10
Shops, machine	5
Shops, paint	15 - 20
Shops, woodworking	5
Substation, electric	5 - 10
Supermarkets	4 - 10
Swimming pools	20 - 30
Textile mills	4
Textile mills dye houses	15 - 20
Town Halls	4 - 10
Taverns	20 - 30
Theaters	8 - 15
Transformer rooms	10 - 30
Turbine rooms, electric	5 - 10
Warehouses	2
Waiting rooms, public	4
Warehouses	6 - 30
Wood-working shops	8

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Ventilation Techniques

Can Modification Of Ventilation Be Used To Increase Safety In Enclosed Spaces?