Biotoxicity Exposure Profile Assessment™
This assessment evaluates the total biologically relevant exposure profile of an indoor environment by examining particulate-bound inflammatory and toxic signals, how they move through a space, where they persist, and how occupants may be exposed over time.
Exposure Indicators Evaluated
Vital Environments produces exposure pathway intelligence—not just test results. We evaluate how biologically active signals enter, move through, settle within, and re-enter the breathing zone through real-world pathways.
Exposure indicators may include endotoxins, actinobacteria, beta-glucans, and volatile organic compounds (VOCs). These indicators commonly bind to dust and fine particulates, which can increase exposure relevance through inhalation, contact, and re-aerosolization. The goal is to understand cumulative burden—not a single-point measurement.
We also evaluate building dynamics that amplify (or reduce) exposure pathways, including: airflow patterns, pressure relationships, HVAC operation and distribution, filtration performance, and the location/behavior of dust reservoirs that can act as long-term exposure “storage.”
What Is an Endotoxin?
Inflammatory bacterial fragments associated with respiratory and immune activation.
What Is Actinobacteria?
Bacterial fragments linked to inflammatory pathways in water-impacted environments.
What Is Beta-Glucan?
Fungal cell-wall polysaccharides considered inflammatory particulate markers.
Request an AssessmentWhy Particulates Drive Exposure & Health Relevance
In most buildings, exposure is particulate-driven. Fine particulates act as a transport and storage mechanism for biologically active compounds—shaping how often occupants re-encounter them.
- Bind and carry biologically active compounds
- Re-aerosolize with normal activity (walking, HVAC cycles, cleaning)
- Accumulate in HVAC systems, soft goods, and dust reservoirs
- Create chronic, low-dose exposure patterns over time
Methodology & Governance Alignment
Vital Environments is a Founding Partner of the Purified Environments Provider Network (PEPN™), a national governance alliance advancing health-aligned, exposure-informed indoor environmental practice.
VE assessments follow PEPN methodology, emphasizing biotoxicity burden, exposure pathways, and environmental reservoirs rather than regulatory checklists.
PEPN methodology is informed by the work of The Center for Indoor Air Quality and Human Health.
Learn more at www.pepn.us
Texas notice: Vital Environments is not a Licensed Texas Mold Assessor. All services are informational only and exclude mold determination or clearance.
We Understand Biotoxin Illness
We recognize the environmental patterns, exposure signals, and living-space conditions that often indicate when a home may be contributing to ongoing health stress—especially for individuals who are medically sensitive.
Learn More
Approximately 25% of the population is genetically susceptible to mold illness
This susceptibility is largely due to variations in the human leukocyte antigen (HLA) genes, particularly certain HLA-DR and HLA-DQ variants, which may influence how efficiently the immune system recognizes and clears biotoxin-related exposures.
🇺🇸 Did You Know?
Our U.S. military service members are suffering from toxic mold exposure.
This needs to be fixed.
Certified Training in Mold Illness
Vital Environments has completed accredited continuing medical education through The George Washington University School of Medicine and Health Sciences, including the course “Understanding Mold Illness: The Basics.” education reinforces our commitment to medically informed, evidence-aligned environmental assessment practices.
Founding Partner of PEPN
Vital Environments is a founding partner of the Purified Environments Provider Network (PEPN) — a governance-driven alliance advancing health-aligned standards for indoor environmental assessment, interpretation, and post-remediation accountability.