Cleanroom Design Calculator

Use a separate table for every classified room in your cleanroom project (anteroom/gowning room, clean zone, etc.) by clicking on "+Add a room". Once you are done, click "Calculate".

For the calculation, we assume 10 to 30 air changes per hour (ACH) for an ISO 8; 30 to 65 ACH for an ISO 7; 80 to 150 ACH for an ISO 6; 200 to 450 ACH for an ISO 5. If there is a significant generation of particles in the process, we use the higher number in the range.

 

Disclaimer: This is a rule of thumb only. A lot of aspects are not taken into consideration for the calculation, including but not limited to, heat gain, number of people, the use of a fume hood, etc. Calculations should be computed by a cleanroom HVAC specialist.

If you want help with the design of your cleanroom, fill out a request for quote and one of our experts will contact you.

Classified Room 1

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Ceiling height is usually 8 or 9 feet high.This estimation tool is not suitable for ceiling height over 10 feet.

In drug compounding, ISO 5 is usually reached inside the laminar airflow workbench (LAFW) located in a classified ISO 7 class cleanroom. Therefore, for this particular application, a classified ISO 5 room is not necessary.

This estimation tool is not suitable for an ISO 5 class cleanroom or lower. A different and more complex calculation is required along with the use of unidirectional airflow. Contact our expert to discuss your project.

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Results

Room Air changes per hour (ACH) Quantity of lighting fixtures(a lighting fixture = 4 fluorescent ballasts) Quantity of HEPA filters(600 CFM per filter) Quantity of low air returns(500 CFM per filter)
Classified Room 1
Total Quantity
Total CFM needed

Ceiling height is usually 8 or 9 feet high.This estimation tool is not suitable for ceiling height over 10 feet.

In drug compounding, ISO 5 is usually reached inside the laminar airflow workbench (LAFW) located in a classified ISO 7 class cleanroom. Therefore, for this particular application, a classified ISO 5 room is not necessary.

This estimation tool is not suitable for an ISO 5 class cleanroom or lower. A different and more complex calculation is required along with the use of unidirectional airflow. Contact our expert to discuss your project.

For the calculation, we assume 10 to 30 air changes per hour (ACH) for an ISO 8; 30 to 65 ACH for an ISO 7; 80 to 150 ACH for an ISO 6; 200 to 450 ACH for an ISO 5. If there is a significant generation of particles in the process, we use the higher number in the range.

 

Disclaimer: This is a rule of thumb only. A lot of aspects are not taken into consideration for the calculation, including but not limited to, heat gain, number of people, the use of a fume hood, etc. Calculations should be computed by a cleanroom HVAC specialist.

If you want help with the design of your cleanroom, fill out a request for quote and one of our experts will contact you.

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