If a weight room has a maximum occupancy density of 10 people per 1000 sq ft and is 1500 sq ft, what is the required outdoor airflow rate?

To determine the required outdoor airflow rate based on the maximum occupancy density, we first calculate the maximum number of people that can occupy the weight room using the given density. The weight room is 1500 square feet, and with a maximum occupancy density of 10 people per 1000 square feet, the calculation is as follows:

1. Find the occupancy limit:

• Maximum occupants = (1500 sq ft / 1000 sq ft) × 10 people = 15 people.

Next, we apply the standard guideline for ventilation rates, which typically recommend an airflow rate of 20 cfm (cubic feet per minute) per person for a weight room environment.

2. Calculate the total required airflow:

• Required airflow rate = Number of occupants × Airflow rate per person

• Required airflow rate = 15 people × 20 cfm/person = 300 cfm.

This flow rate ensures adequate ventilation to accommodate the metabolic demands of the occupants during physical activities. The choice of 300 cfm matches this calculation, demonstrating that the required outdoor airflow rate is directly related to both the space's occupancy density and the ventilation standards for physical fitness environments.