`Rp = ( q / v ) * ( "D" * "h" )`

Enter a value for all fields

The Ventilation Rate per Personcalculator computes the ventilation rate per person based on the flow rate of fresh air, volume of the space, occupant density and the ceiling height.

INSTRUCTIONS: Choose units and enter the following:

• (q) This is the flow rate of fresh air into the space
• (v) This is the total volume of the space (e.g. volume of a room)
• (D) This is the area per occupant (e.g. 64 square feet)
• (h) This is the height of the ceiling

Ventilation Rate (R_p):  The calculator returns the ventilation rate in cubic feet per minute. However, that can be automatically converted to compatible units via the pull-down menu.

Ventilation Calculators

• Air Change Rate
• Ventilation Rate per Person

The Math / Science

The formula for ventilation rate per personis:

    `R_p = (q / v) * (D*h)`

where

• R_p = ventilation rate per person
• q = fresh air flow through the room (Cubic Feet per Minute,  cfm)
• v = volume of the room (Cubic Feet)
• D = occupancy density
• h = height of the ceiling