Advanced air purification
- 1 Air quality standards
- 2 Smoking ban
- 3 Ventilation effectiveness
- 4 VOC reduction
- 5 Air filtration
- 6 Microbe and mold control
- 7 Construction pollution management
- 8 Healthy entrance
- 9 Cleaning protocol
- 10 Pesticide management
- 11 Fundamental material safety
- 12 Moisture management
- 13 Air flush
- 14 Air infiltration management
- 15 Increased ventilation
- 16 Humidity control
- 17 Direct source ventilation
- 18 Air quality monitoring and feedback
- 19 Operable windows
- 20 Outdoor air systems
- 21 Displacement ventilation
- 22 Pest control
- 23 Advanced air purification
- 24 Combustion minimization
- 25 Toxic material reduction
- 26 Enhanced material safety
- 27 Antimicrobial surfaces
- 28 Cleanable environment
- 29 Cleaning equipment
23. Advanced air purification
Some circumstances justify greater investment in air purification strategies. For example, proximity to highly traveled roads and seasonal variation can affect outdoor air quality, increasing ozone and VOC content. Additionally, wet climates tend to have high levels of airborne mold.
This feature requires the use of carbon filters to remove VOCs and ozone, and ultraviolet sanitizers to irradiate bacteria, viruses and mold spores present in circulating air.
Part 1: Carbon Filtration
To reduce VOCs in the indoor air, one of the following requirements is met:
a) An activated carbon filter is used in the main air ducts to filter recirculated air. Replacement is required as recommended by the manufacturer.
b) A standalone air purifier with a carbon filter is used in all regularly occupied spaces. Purifiers must be sized appropriately to the space it is serving. Filter replacement is required as recommended by the manufacturer.
Part 2: Air Sanitization
Spaces with more than 10 occupants use one of the following technologies to treat recirculated air, either integrated within the central ventilation system or as a standalone device:
a) Ultraviolet germicidal irradiation.
b) Photocatalytic oxidation.
Part 3: Air Quality Maintenance
As evidence that the selected filtration/sanitation system chosen continues to be fully operational, projects must annually provide IWBI with:
a) Records of air filtration/sanitization maintenance, including evidence that the filter and/or sanitizer has been properly maintained as per the manufacturer's recommendations.
Cardiovascular
Immune
Respiratory
Applicability Matrix
| Core & Shell | New Construction | WELL Interiors | |
|---|---|---|---|
| Part 1: Carbon Filtration | O | O | O |
| Part 2: Air Sanitization | O | O | O |
| Part 3: Air Quality Maintenance | O | O | O |
| Commercial Kitchen | Education | Multifamily Residential | Retail | |
|---|---|---|---|---|
| Part 1: Carbon Filtration | O | O | O | O |
| Part 2: Air Sanitization | O | O | O | O |
| Part 3: Air Quality Maintenance | O | O | O | O |
Verification Methods Matrix
| Letters of Assurance | Annotated Documents | On-Site Checks | |
|---|---|---|---|
|
PART 1 (Design) Carbon Filtration |
MEP | Spot Check | |
|
PART 2 (Design) Air Sanitization |
MEP | Spot Check | |
|
PART 3 (Protocol) Air Quality Maintenance |
Operations Schedule |
| 23.2.a |
The EPA's Residential Air Cleaners document recommends use of UV air duct sanitizers in conjunction with filters. |