ASHRAE+62.1-2022+(1) - Page 064
Extracted Content
Table J-1 Rate Rationale (see Table 6-1) (Continued)
Occupancy Category Description/Rationale
Pet shops (animal areas) Occupant activity is moderate (standing, talking, stooping, walking, and carrying packages). The concentration of
animals of various species in containment creates higher levels of space-related contaminants. This concentration of animals, and the fact that they are kept in open containment, results in this space being classified as Air Class 2.
Supermarket Occupant activity is primarily moderate to heavy walking and may include carrying packages. There are no significant space-related contaminants.
Sports and Entertainment
Bowling alley (seating) Occupant activity is moderate (seated, standing, walking, talking, drinking). The presence of open food and drink creates moderately high levels of significant contaminants.
Disco/dance floors Occupant activity is high. There is considerable aerobic activity. There are often considerable quantities of open drink, creating high levels of space-related contaminants related to the people using the space.
Gambling casinos Occupant activity is moderate (seated, standing, walking, talking, drinking). The presence of open food and drink creates moderately high levels of significant contaminants.
Game arcades Occupant activity is moderate (seated, standing, walking, talking, drinking). The presence of open food and drink creates moderately high levels of significant contaminants.
People Outdoor Air Rate, cfm/person
People Outdoor Air Rate, L/s/person
Area Outdoor Air Rate,
cfm/ft [2]
Area Outdoor Air Rate, Air
L/s·m [2] Class
Gym, stadium (play area)
Health club/ aerobics room
Health club/ weight rooms
Occupant activity is high. There is considerable aerobic activity. There are no significant space-related contaminants. Occupancy is variable, and the high area outdoor air rate compensates for the varying occupancy and local source. CO2-based demand controlled ventilation in these spaces should consider that the volume per person in these spaces is typically large, which means that CO2 concentration changes will have longer than usual lag times behind occupancy changes.
Occupant activity is high. There is considerable aerobic activity in addition to the occupants being very vocal. There are significant space-related contaminants related to the people using the space.
Occupant activity is high. There is considerable aerobic activity in addition to the occupants being very vocal. There are significant space-related contaminants related to the people using the space.
7.5 3.8 0.18 0.9 2
7.5 3.8 0.06 0.3 1
10 5 0.12 0.6 1
20 10 0.06 0.3 1
7.5 3.8 0.18 0.9 1
7.5 3.8 0.18 0.9 1
20 10 0.18 0.9 2
20 10 0.06 0.3 2
20 10 0.06 0.3 2
7.5 3.8 0.06 0.3 1
20 10 0.18 0.9 2
10 5 0.06 0.3 1
Spectator areas Occupant activity is moderate. While the occupants may be primarily seated, there is considerable vocal activity, as well as standing, cheering, and walking to concessions, etc. There are often considerable quantities of open food and drink, creating high levels of space-related contaminants.
Sports arena (play area) Occupant activity is high. There is considerable aerobic activity. Occupancy is variable, and the high area outdoor air rate compensates for the varying occupancy and local sources. The presence of playing surface cleaning/resurfacing equipment results in significantly high levels of space-related contaminants.
Stages, studios Occupant activity is moderate. While the occupants may be primarily seated, there is considerable vocal activity, as well as standing, cheering, and walking to concessions, etc. The stage props result in higher levels of space-related contaminants. Contaminant level is not high enough to justify an Air Class 2.