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ASHRAE IAQ Procedure Calculator
This award-winning free IAQP software calculates the outside air reduction available versus the OA rates calculated by the Ventilation Rate Procedure (VRP) in ASHRAE 62.1.
Using the International Mechanical Code OA exception clause, outside air can be reduced by as much as 75% by cleaning the air of harmful pathogens and other contaminants.
Benefits to reducing outside air intake:
- Upfront equipment savings
- Decrease heating and cooling loads
- Recurring annual energy savings