How to Maximize All 10 IAQ Points in LEED v5

To earn the maximum 10 points for the Indoor Air Quality Performance credit in LEED v5 O+M, projects must move beyond simple measurement and demonstrate superior air quality management.

While some points are awarded for simply measuring certain parameters, full points are earned by projects that prove their buildings consistently keep these parameters below defined health-based thresholds.

What Is the Scoring System for IAQ Monitoring in LEED v5?

Earning points in LEED v5 is a two-step process: first, you get credit for measuring your building’s performance, and second, you get credit for achieving higher levels of performance (i.e., healthier indoor air). 

Base Points (Measurement Only)

You earn these points simply by installing the right monitoring solution and collecting data, regardless of what the data says. This encourages buildings to start taking measurements even if their indoor air quality (IAQ) isn't perfect yet.

• Measure CO2: 2 Points
• Measure PM2.5: 2 Points
• Measure TVOC: 2 Points
• Total Base Score: 6 Points

Performance Points (Meeting Thresholds)

To bridge the gap from 6 to 10 points, your air quality data must demonstrate that your building is effectively filtering pollutants and ventilating the space.

• CO2 Performance: Keeping the 95th percentile CO2 concentration below 1,000 ppm earns 1 additional point, while maintaining levels below 800 ppm earns 2 additional points (for a cumulative total of 4 points).
• PM2.5 Performance: Maintaining a daily average PM2.5 concentration below 15 µg/m³ earns 1 additional point, while keeping levels below 12 µg/m³ earns 2 additional points (for a cumulative total of 4 points).
• TVOC Performance: While measuring TVOC is required to earn base points, there is currently no additional performance threshold that awards extra points for lower TVOC levels in this credit option.

For a full breakdown of credits and parameters, as well as how to choose the right monitoring solution for your project, check out our comprehensive guide to IAQ in LEED v5.

Summary of Points for IAQ Monitoring in LEED v5

What Is the Best Strategy to Earn All 10 Points for IAQ in LEED v5?

Securing all 10 points requires a proactive "Measure, Analyze, Improve" approach. Simply installing monitors isn't enough; projects must use the data to drive consistent operational improvements.

• Diagnose Spikes: Use trend data to identify specific times or events (like cleaning schedules or high-occupancy meetings) that cause pollutant spikes.
• Automate Responses: Deploy a solution that integrates with your building management system (BMS). This allows your building to automatically increase fresh air or filtration the moment readings approach the 800 ppm (CO2) or 12 µg/m³ (PM2.5) limits.
• Engage Occupants: Share your data with occupants to prove that you are investing in their health and provide opportunities for them to help optimize the indoor environment for everyone (such as restricting the use of fragrances that off-gas VOCs).

Ready to Maximize Your IAQ Score? 

Reach out today to connect with a LEED AP on the Kaiterra team!