# IAQ Monitoring for BREEAM, WELL & LEED Certification

**The Challenge:**  
Building owners and developers pursuing BREEAM, WELL, or LEED certification must demonstrate compliance with stringent indoor air quality (IAQ) standards to ensure healthy, sustainable, and occupant-friendly environments. Meeting these requirements involves:

* Developing an Indoor Air Quality Plan (as required by BREEAM and LEED) early in the design stage to mitigate sources of indoor pollution.
    
* Pre- and post-occupancy testing for critical pollutants such as VOCs, formaldehyde, particulate matter (PM<sub>2.5</sub>/PM<sub>10</sub>), CO₂, CO, ozone, and NO₂.
    
* Adherence to strict pollutant thresholds, such as:
    
    * WELL PM<sub>2.5</sub> limit: ≤15 µg/m³
        
    * LEED TVOC limit: ≤500 µg/m³
        
    * BREEAM thresholds aligned with WHO indoor air quality guidelines.
        
* Accredited lab analysis and comprehensive documentation to support audit readiness and achieve credit under:
    
    * BREEAM
        
    * WELL Features
        
    * LEED EQ credits (IAQ Assessment, Construction IAQ Management Plan)
        

Failure to meet these requirements can result in certification delays, increased costs, and compromised sustainability goals.

**How We Help:**  
At IEQCheck, we specialise in end-to-end IAQ monitoring and compliance support tailored to the unique requirements of BREEAM, WELL, and LEED.

#### **Comprehensive Air Quality Strategy**

* IAQ Plan Development: Early-stage planning to minimise pollutant sources from materials, HVAC systems, and construction activities—meeting BREEAM and LEED prerequisites.
    
* Pre-Occupancy Testing
    
    * For BREEAM/LEED: Conducted in representative areas for TVOCs, formaldehyde, PM<sub>2.5</sub>, PM<sub>10</sub>, CO, CO₂, NO₂, ozone, and radon (region-specific).
        
    * Data evaluated against LEED Option 1 thresholds, BREEAM Hea 02 targets, and WHO guidelines.
        
* Post-Occupancy Testing
    

For WELL: Carried out under Feature X05 to ensure ongoing compliance once the building is in use.

**Accredited Analysis and Documentation**

* All testing conducted by UKAS (ISO 17025) accredited laboratories to meet certification body standards.
    
* Compliance with WELL v2 thresholds, ASHRAE 62.1, and WHO IAQ guidelines.
    
* Full reports mapped directly to BREEAM Hea 02, WELL Features X05/X06, and LEED EQc3 requirements.
    

**Benefits to Customers:**

* **Streamlined Certification:** Our precise monitoring and reporting help you meet certification requirements efficiently, avoiding delays and costly revisions.
    
* **Healthier Spaces:** By identifying and addressing IAQ issues, we help you create indoor environments that promote occupant health and well-being.
    
* **Enhanced Reputation:** Achieving BREEAM, WELL, or LEED certification demonstrates your commitment to sustainability and occupant comfort, enhancing your building’s marketability.
    
* **Peace of Mind:** With our expertise, you can be confident that your building meets the highest standards of indoor air quality and sustainability.
    

[Contact us](https://ieqcheck.co.uk/#contact)