In a 20 x 10 x 8 foot room, how many air changes per hour are produced by a scrubber rated at 1000 CFM?

To determine the number of air changes per hour produced by a scrubber rated at 1000 CFM (cubic feet per minute) in a room with dimensions of 20 x 10 x 8 feet, it's important to calculate the volume of the room first and then use the scrubber's air flow rate to find the air changes.

First, calculate the volume of the room:

Volume = Length x Width x Height

Volume = 20 ft x 10 ft x 8 ft

Volume = 1600 cubic feet.

Next, we can find out how many cubic feet are being moved by the scrubber in one hour. Since the scrubber moves air at a rate of 1000 CFM, we convert that to cubic feet per hour:

1000 CFM x 60 minutes = 60,000 cubic feet per hour.

To find the number of air changes per hour (ACH), we divide the total volume of air moved by the scrubber in one hour by the volume of the room:

ACH = Total air moved per hour / Room volume

ACH = 60,000 cubic feet per hour / 1600 cubic feet

ACH = 37.5.

Since air changes per hour is typically expressed