Service
UL Verified Ventilation and Filtration is a science‑based program that helps building owners and operators measure, verify and communicate real‑world aerosol removal performance to support healthier indoor air. The program is powered by SafeTraces and focuses specifically on aerosol removal in occupied spaces.
Inadequate ventilation is cited as the largest source of indoor air quality risk, including airborne pathogens, and many organizations have lacked field tools to verify real‑world performance in occupied spaces. And indoor air quality (IAQ) is an increasingly significant concern for employees and employers. According to research by Fellowes, 82% of respondents agreed that it is important for employers to share information about the quality of indoor air. This underscores the need for transparent, data‑driven communication about ventilation and filtration performance.
The assessment combines a comprehensive desktop review with field verification of ventilation and filtration using DNA‑tagged aerosol tracers that safely simulate respiratory emissions and exposures. Successful participants can communicate their claim with a UL Verified Mark.
UL Solutions evaluates ventilation and filtration performance potential based on the building’s design, HVAC system specifications and key building data. This stage confirms inputs that inform effective air changes per hour calculations per applicable ASHRAE methods
In occupied, high‑density areas, UL Solutions reviews on‑site test plans and verifies performance using SafeTraces’ patented diagnostic platform with DNA‑tagged aerosol tracers to measure real‑world aerosol removal.
When stated performance is met, UL Solutions issues a UL Verified Mark and the claim is listed in the public UL Verify database for transparency.
UL Solutions evaluates ventilation and filtration performance potential based on the building’s design, HVAC system specifications and key building data. This stage confirms inputs that inform effective air changes per hour calculations per applicable ASHRAE methods
In occupied, high‑density areas, UL Solutions reviews on‑site test plans and verifies performance using SafeTraces’ patented diagnostic platform with DNA‑tagged aerosol tracers to measure real‑world aerosol removal.
When stated performance is met, UL Solutions issues a UL Verified Mark and the claim is listed in the public UL Verify database for transparency.
Identify aerosol exposures and help lower infection risk while increasing occupant confidence in your indoor spaces.
Support occupancy and leasing goals and reduce risk of absenteeism or disruptions, using objective data to guide investments in ventilation and filtration.
Optimize ventilation and filtration strategies to reduce energy and carbon penalties and align with ESG and decarbonization goals.
Commercial and corporate real estate teams use verification to communicate indoor air performance to employees, tenants and stakeholders.
K‑12, higher education and mass transit environments leverage verification to demonstrate attention to occupant health in shared spaces.
In public‑facing or sensitive settings, independent verification provides clear, science‑based support for aerosol removal efforts.
Take a holistic approach to indoor environmental quality across air, water, hygiene, lighting and acoustics. UL Solutions has verified indoor environmental quality across hundreds of buildings and hundreds of millions of square feet, providing occupants with comprehensive, data‑backed reassurance. Learn how the Verified Healthy Building program complements ventilation and filtration efforts.
Engage expert‑led IEQ testing to evaluate health, wellness and sustainability factors, from proactive inspections to WELL, Fitwel and LEED performance testing, plus Legionella guidance per ASHRAE 188.
When you need rapid, reactive support, UL Solutions offers IAQ testing for building engineers, owners and managers, including HVAC inspections, Legionella testing, mold and moisture inspections and more.
For manufacturers and facility teams looking at ventilation systems testing and certification for equipment and components, UL Solutions provides comprehensive compliance, performance and market access services.
See public listings of UL Verified Ventilation & Filtration claims, including examples that verify ≥ 99% hourly aerosol removal in high‑density areas, in the UL Verify database. Criteria and results are documented for transparency.
See public listings of UL Verified Ventilation & Filtration claims, including examples that verify ≥ 99% hourly aerosol removal in high‑density areas, in the UL Verify database. Criteria and results are documented for transparency.
Connect with UL Solutions to scope your ventilation testing and field verification needs, align on applicable methods and plan your UL Verified Ventilation and Filtration assessment.
UL Solutions combines a desktop review of your building and HVAC documentation with on‑site evaluation using DNA‑tagged aerosol tracers to measure real‑world aerosol removal performance in occupied spaces. Findings support a UL Verified Mark when the stated claim is met.
Field verification uses SafeTraces’ patented aerosol tracing technology that safely simulates respiratory emissions and exposures, enabling measurement of removal performance in real conditions.
Independent, third‑party verification builds trust and confidence among occupants and stakeholders and provides a transparent way to communicate actual conditions. UL lists verified claims in a public database to support decision making.
UL Verified Ventilation and Filtration focuses specifically on aerosol removal performance, while the Verified Healthy Building program provides a holistic view across indoor air, water, hygiene, lighting and acoustics. Many organizations use both to validate targeted performance and overall indoor environmental quality.
