Clean indoor air is more than a design requirement—it is a business asset. WellAir helps engineers apply performance-based indoor air quality strategies to optimize ventilation and HVAC design, improve indoor environments, reduce energy demand, and deliver measurable long-term value.
Traditional ventilation design often relies on outdoor air volume as the primary method for managing indoor contaminants. But bringing in, heating, cooling, and dehumidifying outdoor air can increase mechanical loads, equipment requirements, and operating costs—without guaranteeing that the incoming air is clean.
The Indoor Air Quality Procedure, or IAQP, provides a performance-based pathway within ASHRAE Standard 62.1. It allows engineers to evaluate indoor and outdoor contaminants and determine how ventilation and validated air-cleaning technologies can work together to achieve acceptable indoor air quality.
For building owners, that can transform IAQ from an operating expense into a strategic asset—supporting healthier spaces, more efficient systems, lower lifecycle costs, and stronger building performance.
Reducing outdoor-air conditioning loads may allow engineers to optimize HVAC equipment, ductwork, energy-recovery systems, and other mechanical infrastructure—helping control first costs and preserve valuable building space.
Conditioning outdoor air requires energy. An IAQP strategy can potentially reduce heating, cooling, and dehumidification demand while maintaining the required indoor-air outcomes.
IAQP can create new options for space-constrained retrofits, high-occupancy environments, VRF applications, challenging climates, and projects where conventional ventilation approaches are impractical or cost prohibitive.
WellAir combines air cleaning, sensing, monitoring, and engineering support to help teams move beyond design intent and maintain visibility into indoor-air performance over time.
Ventilation Rate Procedure
The Ventilation Rate Procedure uses occupancy and floor area to establish prescriptive outdoor-air quantities. It is familiar and widely used, but it may introduce larger conditioning loads and does not directly evaluate every contaminant affecting the indoor environment.
Indoor Air Quality Procedure
The IAQP evaluates defined contaminants, their potential sources, concentration limits, outdoor-air conditions, and air-cleaning performance. Engineers use this information to calculate an appropriate combination of outdoor air and treated recirculated air for the application.
The IAQP does not eliminate ventilation. It gives engineers a standards-based method for determining how ventilation and air cleaning can work together more effectively.
WellAir supports a connected approach to IAQ engineering:
A smarter approach to indoor air quality—designed to help buildings perform better.
WellAir’s free, award-winning software that simplifies IAQP modeling to help engineers design efficient ventilation strategies and guide client decisions.
Deliver real-time visibility into indoor air quality to help teams track conditions, verify performance, and make smarter operational decisions.
IAQP strategies can be especially valuable in:
Each project should be evaluated individually based on occupancy, contaminants, system configuration, climate, applicable codes, and owner priorities.
Engineered for Performance
WellAir helps engineering teams evaluate indoor air quality strategies within the standards and healthy-building frameworks relevant to their projects.
Depending on the application and selected solution, these may include:
Our goal is not simply to help a project meet a requirement. It is to help engineers create indoor environments that perform better for owners, operators, and occupants.
As engineers navigating the complexities of indoor air quality (IAQ) compliance, you need a resource that consolidates everything in one place.
Our white paper, “A Comprehensive Guide to ASHRAE Standards and Guidelines Related to Indoor Air Quality,” offers an invaluable overview of the key ASHRAE standards, guidelines, and performance testing protocols.
Simplifying IAQP Design with Atlas Design & EngineeringAtlas Design & Engineering used PlasmaSoft and Plasma Air technology to simplify IAQP calculations and develop ventilation strategies that helped clients reduce capital and operating expenses while improving energy efficiency and indoor air quality.
Solving Outdoor-Air Constraints in a Healthcare RetrofitAt the Virtua Center for Weight Loss, engineers combined a VRF system, Plasma Air technology, and PlasmaSoft to address outdoor-air requirements within a space that could not accommodate extensive conventional HVAC infrastructure.
WellAir works alongside consulting engineers, mechanical designers, contractors, and building owners throughout the project lifecycle.
Our team can support:
Final system design, code compliance, and approval remain subject to the project engineer and applicable authority having jurisdiction.
High-performing spaces balance occupant health, energy efficiency, and bottom-line results. Partner with WellAir to turn clean air into a measurable business asset.
