LEED v5 O+M Rating System_February 2026 - Page 073
Extracted Content
Indoor Environmental Quality Credit
INDOOR AIR QUALITY PERFORMANCE
EQc1
1–10 points
INTENT
To support IAQ awareness and identify opportunities for additional air quality improvements or energy savings.
REQUIREMENTS
| Achievement Pathways | Points |
|---|---|
Existing Buildings | 1–10 |
Option 1. Continuous Indoor Air Monitoring | 2–10 |
AND/OR | |
Option 2. Targeted One-Time Air Testing | 1–3 |
AND/OR | |
Option 3. Targeted One-Time Individual Volatile Organic Compounds Testing | 1–2 |
Option 1. Continuous Indoor Air Monitoring (2–10 points)
Continuously measure one or more of the indicated indoor air parameters for a minimum of three consecutive months at an interval of no longer than one hour (15 minutes for carbon dioxide), with data collected at any point during the 12-month reporting period. Monitors must be building grade or better.
Points for continuously monitoring parameters are shown in Table 1. Projects can earn additional points by demonstrating compliance with the minimum and enhanced IAQ limits indicated in Table 1.
Table 1. Points for Continuous Indoor Air Monitoring
| Parameter | Benchmark | LEED Points |
|---|---|---|
| Carbon dioxide (CO2) | > 1,000 ppm | 2 |
| Carbon dioxide (CO2) | 1,000 ppm | 3 |
| Carbon dioxide (CO2) | 800 ppm | 4 |
| PM2.5 | > 15 µg/m3 | 2 |
| PM2.5 | 15 µg/m3 | 3 |
| PM2.5 | 12 µg/m3 | 4 |
| TVOC | Any level | 2 |
U.S. Green Building Council LEED v5 Reference Guide for Operations and Maintenance, November 2025 Edition 67