Equivalent Outdoor Air Calculator This calculator is based on the ASHRAE Building Readiness Guide.Space Area (sqft)*Please enter a number greater than or equal to 0.Ceiling Height (ft)*Please enter a number greater than or equal to 0.Supply Air Flow (CFM)*Please enter a number greater than or equal to 0.Outdoor Air Percentage (%)*Please enter a number from 0 to 100.Space Volume (cuft)Supply Air ChangeOutdoor Air ChangeFilter Rating*No FiltersMERV-4MERV-5MERV-6MERV-7MERV-8MERV-9MERV-10MERV-11MERV-12MERV-13MERV-14MERV-15MERV-16Filter Equiv. Air ChangeIs there any in-duct UV-C?*YesNoUVC Single Pass Inactivation (%)*Please enter a number from 0 to 100.UVC Equiv. Air ChangeIs there any in-room HEPA filtration?*YesNoTotal In Room Fan HEPA Filter Clean Air Delivery Rate (CFM)If there is more than one in-room HEPA filtration unit, please enter in the sum of all Clean Air Delivery Rate from all units.In Room HEPA Equiv Air ChangeZone Air Distribution Effectiveness*ASHRAE Standard 62.1, Use 1 for typical office set up.Equiv. OA Air ChangeEnter your target Air ChangePlease enter a number greater than or equal to 0.Time required to achieve target (min)Please enter your email address and we will email this result to you. Thank you for taking your time today to review the Outdoor Air Equivalency Tool, and we trust it provided some value. We respect your privacy and no salesperson shall contact you without your acknowledgement below.Name* First Last Email Address* Phone Number Yes, I will like to receive invitations for future education sessions and publications about Indoor Environment Quality Yes, I will like to learn more about your offerings, please contact me. PhoneThis field is for validation purposes and should be left unchanged.