Air filtration
- 01 Air quality standards
- 02 Smoking ban
- 03 Ventilation effectiveness
- 04 VOC reduction
- 05 Air filtration
- 06 Microbe and mold control
- 07 Construction pollution management
- 08 Healthy entrance
- 09 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 activity for surfaces
- 28 Cleanable environment
- 29 Cleaning equipment
- P9 Advanced cleaning
05. Air filtration
Air quality is subject to variability due to weather, dust, traffic and localized pollutant sources. Seasonal variations in pollen can trigger asthma and allergies in sensitive individuals. Similarly, exposure to high levels of coarse and fine particulate matter introduced from the outside can lead to respiratory irritation and has been associated with increases in lung cancer as well as cardiovascular disease and mortality.
This feature requires proper filtration to achieve reliable air quality performance over time. Carbon filters are designed to absorb volatile pollutants and remove the largest particles, while media filters are meant to address smaller particles. This feature is especially important when outdoor air quality routinely fails the pollutant concentrations outlined in the WELL Air Quality Standards feature. Like all of WELL, projects may submit alternative strategies to meet the intent of this feature.
If recirculated air is used, the following requirements are met in ventilation assemblies in the main air ducts for recirculated air:
One of the following requirements is met:
To verify that the filtration system continues to operate as designed, projects must annually provide IWBI with:
Applicability Matrix
Core & Shell | New & Existing Buildings | New & Existing Interiors | |
---|---|---|---|
Part 1: Filter Accommodation | P | P | P |
Part 2: Particle Filtration | P | P | P |
Part 3: Air Filtration Maintenance | P | P | P |
Commercial Kitchen | Education | Multifamily Residential | Restaurant | Retail | |
---|---|---|---|---|---|
Part 1: Filter Accommodation | P | P | P | P | P |
Part 2: Particle Filtration | P | P | P | P | P |
Part 3: Air Filtration Maintenance | P | P | P | P | P |
Verification Methods Matrix
Letters of Assurance | Annotated Documents | On-Site Checks | |
---|---|---|---|
Part 1: Filter Accommodation | MEP | Spot Check | |
Part 2: Particle Filtration | MEP | Spot Check | |
Part 3: Air Filtration Maintenance | Operations Schedule |