ASHRAE+62.1-2022+(1) - Page 063

Extracted Content

Table J-1 Rate Rationale (see Table 6-1) (Continued)

Occupancy Category Description/Rationale

People Outdoor Air Rate, cfm/person

Area Outdoor Air Rate, Air

L/s·m [2] Class

People Outdoor Air Rate, L/s/person

Area Outdoor Air Rate,

cfm/ft [2]

Courtrooms Occupant activity is primarily sedentary (seated). There are no significant space-related contaminants. 5 2.5 0.06 0.3 1

Legislative chambers Occupant activity is primarily sedentary (seated). There are no significant space-related contaminants. 5 2.5 0.06 0.3 1

Libraries Occupant activity is primarily sedentary (seated or light walking). The large quantities of books create higher levels of space-related contaminants (dust and odors).

Lobbies Occupant activity is primarily sedentary (seated or light walking). There are no significant space-related contaminants.

Museums (children’s) Occupant activity is moderate. There is considerable aerobic activity in addition to the occupants being very vocal. Also, the occupants are typically young children with higher metabolic rates. There are typically some significant space-related contaminants, such as food and drink.

Museums/galleries Occupant activity is primarily standing and light walking. However, occupants are generally more vocal, resulting in higher metabolic rates. There are no significant space-related contaminants.

5 2.5 0.12 0.6 1

5 2.5 0.06 0.3 1

7.5 3.8 0.12 0.6 1

7.5 3.8 0.06 0.3 1

Places of  religious worship

Residential

Occupant activity is primarily sedentary (seated). There are no significant space-related contaminants. 5 2.5 0.06 0.3 1

Common corridors Persons passing through the corridor are considered to be transitory and thus not occupants. There are no significant space-related contaminants.

Retail

Sales (except as below) Occupant activity is moderate. There is considerable occupant movement, including carrying packages and being more vocally active. The presence of new merchandise creates higher levels of space-related contaminants. This is primarily the reason for the space being classified as Air Class 2.

Barber shop Occupant activity is primarily sedentary, with moderate work being performed by the staff. Occupants are generally more vocal, resulting in higher metabolic rates. There are some significant space-related contaminants (shampoos, disinfecting agents, high levels of human hair). However, these are directly related to the occupancy rather than the floor area. This is the primary reason why this space is classified as Air Class 2.

Beauty and nail salons Occupant activity is primarily sedentary, with moderate work being performed by the staff. Occupants are generally more vocal, resulting in higher metabolic rates. There are some significant space-related contaminants (shampoos, disinfecting agents, high levels of hair).

Coin-operated laundries Occupant activity is primarily moderate-to-heavy walking and may include carrying packages. There are some

significant space-related contaminants (detergents, disinfecting agents, soiled laundry). However, these are directly related to the occupancy rather than the floor area. This is the primary reason why this space is classified as Air Class 2.

Mall common areas Occupant activity is primarily moderate to heavy walking and may include carrying packages. Occupants are generally more vocal, resulting in higher metabolic rates. There are no significant space-related contaminants.

• • 0.06 0.3

7.5 3.8 0.12 0.6 2

7.5 3.8 0.06 0.3 2

20 10 0.12 0.6 2

7.5 3.8 0.12 0.6 2

7.5 3.8 0.06 0.3 1