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Closed-Loop Clean
Air Systems for
Ventilation Efficiency.

Day One ROI. Less Energy. Cleaner Air.

Every dollar spent on smartIAQ can save up to $8 in equipment costs

The smartIAQ® Project Builder
Ventilation design just got easier.

HVAC ventilation design is the largest energy saving opportunity in buildings today, with IAQP designs cutting ventilation air by up to 50% and delivering 6-9% total building energy savings. See how real projects are putting those numbers to work.

The smartIAQ Project Builder is a web-based IAQP ventilation calculator that does what the spreadsheet never could.

Build complete projects based on ASHRAE 62.1, configure ventilation and equipment schedules, and let built-in error checking catch mistakes before they reach your drawings. Import, save, and share your work from anywhere. 

<p>Try the smartIAQ</p> <p>Project Builder</p>

  •  Free and Web-Based 

  •  Built on ASHRAE 62.1 Standards

  • Import, Save, and Share Projects

  • Always Current with Latest Features 

  • Generates Editable Equipment Schedules 

Engineered to Make Ventilation Efficiency Easy.

smartIAQ is not a device. It is a standards-based approach to delivering clean air inside the space while reducing outdoor air and conditioning load. It gives engineers a practical way to achieve ventilation efficiency through IAQP and verify results with confidence.

Explore smartIAQ
Systems

Proven IAQP and Ventilation Efficiency Performance

See how real buildings reduced outdoor air, downsized equipment, and improved IAQ with smartIAQ.
Background of case study for K-12 school designed with IAQP for cost savings.
IAQP Unlocked Major HVAC Savings
Learn how a K-12 school used smartIAQ and the IAQP to unlock major project savings. 
Read the Case Study
University classrooms renovated from office space with IAQP.
IAQP Solves University Retrofit Challenge
Lower outdoor air needs helped the project avoid costly mechanical upgrades.
Read the Case Study
gpsair-smartiaq-church-savings-iaqp-1
Church Eliminated 75 Tons of Equipment
By reducing outdoor air with IAQP, the project saved more than $170,000 in upfront cost.
Read the Case Study

Professional Engineer Support for Ventilation Efficiency

Our Application Engineering team helps you evaluate ventilation strategies, reduce outdoor air requirements, and document IAQP-based designs. From initial questions to full project reviews, you get guidance tailored to your building type, system configuration, and design goals.

Start Your
Design Review

  • Project Reviews
    Send drawings, calculations, or design goals. Our Professional Engineers will review outdoor air requirements, IAQP potential, and system impacts specific to your project.

  • Technical Guidance
    Get clarity on IAQP documentation, contaminant limits, equipment considerations, and how smartIAQ integrates into existing or new HVAC systems.

  • Ventilation Optimization
    Identify opportunities for reduced outdoor air, improved ventilation efficiency, and more cost-effective HVAC designs.

A smartIAQ System for Every Application

From classrooms to complex facilities, smartIAQ delivers scalable ventilation efficiency. Choose Distributed for single or multi-zone installs, Centralized for system-wide integration, or Performance for maximum contaminant removal.

Empty classroom where indoor air quality is critical to learning.

smartIAQ GridSet™

The simple path to cleaner air, first cost savings and lower utility bills.

Learn More
Office space where smartIAQ provides better indoor air quality.

smartIAQ Distributed

Delivers in-room or multi-zone air cleaning without relying on central HVAC.

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Large school gymnasium that needs a lot of air cleaning when full of people.

smartIAQ Centralized

Installs as a side-stream to your AHU, enabling system-wide ventilation efficiency.

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Laboratory in a hospital or university where cleaning air contaminants is critical.

smartIAQ Performance

Engineered for high-demand environments, providing constant IAQ protection.

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How smartIAQ Works in a Ventilation Design

A Closed-Loop System That Delivers Verified Results


smartIAQ monitors indoor contaminants, cleans as needed, and confirms that IAQP design targets are being met. This closed-loop approach gives engineers confidence to reduce outdoor air without compromising indoor air quality.

Want to dig deeper into the technology or standards?

Read Our White Papers
smartIAQ sensors monitor for ASHRAE Standard 62.1 contaminants of concern including TVOS, CO2, and Particles

See smartIAQ in Action

Watch how smartIAQ improves air quality, reduces outdoor air, and integrates into real building designs. 
smartIAQ Systems Introduction
Introducing smartIAQ GridSet™

smartIAQ FAQs

What is smartIAQ?

smartIAQ is GPS Air's closed-loop air cleaning system for commercial buildings. It monitors indoor contaminants, activates air cleaning as needed, and confirms that contaminant levels stay within the design targets required under ASHRAE 62.1-2019 - 2025 or ASHRAE 241.

The system is designed around the Indoor Air Quality Procedure (IAQP), a performance-based ventilation pathway that allows engineers to reduce outdoor air requirements, reducing equipment and energy use, when active air cleaning is in place and verified.

How does smartIAQ operate autonomously?

The system continuously monitors for the contaminants of concern specified under ASHRAE 62.1-2022, including formaldehyde, TVOCs, CO2, and particulate matter.

When contaminant levels rise, the system responds without manual input. When levels return to target, it scales back CFM, preserving filter life.

This self-adjusting cycle is what GPS Air means by autonomous air cleaning: the outcome is verified clean air, not a dashboard that someone has to act on.

What contaminants does smartIAQ monitor?

smartIAQ sensors track the contaminants of concern identified under ASHRAE 62.1-2019 - 2025 for IAQP compliance, including total volatile organic compounds (TVOCs), formaldehyde, and fine particulate matter (PM2.5/PM10).

The unit also tracks other key measures such as temperature and CO2.The sensor data feeds the closed-loop system to control air cleaning output, and can connect to BMS systems for building reporting.

How does smartIAQ support IAQP compliance under ASHRAE 62.1-2019 - 2025?

The Indoor Air Quality Procedure allows engineers to supplement or replace the ventilation rate procedure with a prescriptive, contaminant-control approach. To qualify, the design must include active air cleaning and documented evidence that indoor levels are designed to manage the prescribed contaminants of concern for the space and occupancy per ASHRAE Standard 62.1. smartIAQ gives engineers a standards-based path to cleaner indoor air, reducing outdoor air and conditioning load while providing the verification data to back it up.

GPS Air's Application Engineering team can assist with IAQP documentation and project review.

What are the energy savings associated with smartIAQ?

The primary savings come from reducing outdoor air conditioning load. Under a standard VRP design, buildings condition large volumes of unconditioned outdoor air year-round.

IAQP designs using smartIAQ can reduce outdoor air intake by up to 50%, which translates to 6-9% total building energy savings in many projects.

Equipment can often be downsized at the design stage, which lowers first cost before energy savings are factored in. A K-12 school project documented over $170,000 in upfront cost savings by reducing outdoor air with an IAQP design.

Is smartIAQ compatible with existing HVAC systems?

Yes. smartIAQ is available in configurations designed for different installation scenarios. The smartIAQ GridSet™ installs as a lay-in ceiling tile replacement, with no ductwork modification required.

The smartIAQ Distributed system serves individual rooms or multi-zone spaces without relying on central HVAC.

The smartIAQ Centralized system installs as a side-stream to an existing air handling unit for building-wide integration. The smartIAQ Performance system is engineered for high-demand or high-contaminant environments.

Does smartIAQ integrate with building automation systems (BAS)

Yes. smartIAQ is designed to connect with building automation systems, allowing IAQP performance data to feed into the building's existing controls infrastructure.

This supports demand-controlled ventilation strategies and gives facility teams continuous visibility into IAQ performance without additional standalone monitoring hardware.

Does smartIAQ qualify for LEED or WELL credits?

smartIAQ supports WELL Building Standard certification and supports LEED IAQP credit pathways. Project teams should confirm specific credit applicability with their certifying body, as documentation requirements vary by project type and certification version.

Is the smartIAQ Project Builder free to use?

Yes. The smartIAQ Project Builder is a free, web-based IAQP ventilation calculator. It allows engineers to build complete IAQP designs based on ASHRAE 62.1, configure ventilation and equipment schedules, and generate editable equipment schedules. Projects can be saved, imported, and shared from any browser.

Could the Indoor Air Quality Procedure Be the Largest Savings Opportunity Being Overlooked?

 IAQP is the engineered path to ventilation efficiency, reducing outdoor air and delivering both lower first cost and long-term energy savings. 

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ASHRAE Logo
The VRP is an indirect solution to achieving IAQ. The IAQP is a more direct approach to the goal of indoor air quality.
The IAQP may allow for a more cost-effective solution to providing good air quality...
The IAQP may also be used to achieve better air quality than the VRP (lower contaminant levels and/or higher perceived acceptability) with or without increasing first cost or maintenance cost.
ASHRAE 62.1-2019 Standard 62.1 User’s Manual
ASHRAE 62.1-2019 Standard 62.1 User’s Manual
ASHRAE 62.1-2019 Standard 62.1 User’s Manual