Verifying Cost Efficient Indoor Air Quality




Regular Performance Checks
Use the veriDART Portal to plan, execute, and manage ventilation and filtration with regular performance checks.
Dilution Tests (Room-Focused)
Optimize HVAC settings to clear high density areas of aerosols
Survey Tests (Zone-Focused)
Verify aerosol mobility and identify hotspots in ≤25,000 square foot zones
Recirculation Tests (HVAC-Focused)
Verify aerosol mobility to air handling units for improved outside air and filter management
Field Verification of Ventilation and Filtration in High Density Areas
Field verification leverages veriDART, the first diagnostic solution for verifying ventilation and filtration performance using patented aerosol tracing technology.
Aerosol tracers safely simulate pathogen mobility and exposure for performance verification and management of HVAC systems.
Results at Your Fingertips
with the veriDART Portal
Benchmark and manage ventilation and filtration performance across your portfolio with diagnostic data.
Intuitive data visualization for customers and service professionals


level performance
across time


UL Verified Ventilation & Filtration, powered by SafeTraces
Delivering the first verification mark for aerosol removal in the built environment.
Powered by SafeTraces, UL’s Verified Ventilation and Filtration program offers building owners and operators an independent, science-based evaluation to earn an annual Verification Mark with the healthy building leader.
The world’s first assessment and rating program combines a comprehensive desktop review by UL with field verification of ventilation and filtration performance using veriDART.
Learn MoreThe SafeTraces Process
With a veriDART subscription, building owners and occupiers gain actionable diagnostic data through a recurring measurement and verification program to optimize HVAC-related safety, sustainability, and savings across real estate & facility portfolios.
Instill trust in the safety of indoor air, with SafeTraces.
Real World Verification, Real World Value

Health & Safety
- Reduce aerosol exposures and infection risk
- Increase public trust, confidence, and peace of mind
- Enhance IEQ programs, compliance, and employee communications

Financial
- Optimize capital investments and operating budgets
- Reduce risk of absenteeism, shutdowns, and adverse impacts to productivity
- Maintain occupancy and leasing levels

Sustainability
- Reduce energy and carbon penalties from ventilation and filtration
- Meet ESG, net zero, and decarbonization goals
- Leverage performance testing for LEED, WELL, and other verification programs