HERTSMI-2 Testing | Guide for CIRS Patients | Mold Testing Dallas
If you've been diagnosed with Chronic Inflammatory Response Syndrome (CIRS) or suspect mold illness is affecting your health, your doctor may have recommended HERTSMI-2 testing. This specialized mold assessment goes beyond standard testing—it identifies the specific toxic mold species most strongly linked to CIRS and inflammatory illness. At Mold Testing Dallas, our TDLR-licensed inspectors perform HERTSMI-2 testing throughout the Dallas metro and DFW metroplex, providing the data your physician needs to guide your treatment and recovery.
This guide explains what HERTSMI-2 testing is, why it matters, and how our team can help you get answers about mold in your home or workplace.
What is HERTSMI-2 Testing?
HERTSMI-2 stands for Health Effects Roster of Type-Specific (Formers of) Mycotoxins and Inflammagens, 2nd version. It's a targeted DNA-based mold test developed by Dr. Ritchie Shoemaker, a leading researcher in mold-related illness and CIRS.
Unlike broad-spectrum mold tests that detect dozens of mold species, HERTSMI-2 focuses exclusively on five water-damaged building molds that research has shown are most strongly associated with CIRS and mycotoxin production:
- Aspergillus penicillioides
- Aspergillus versicolor
- Chaetomium globosum
- Stachybotrys chartarum (black mold)
- Wallemia sebi
The test measures DNA concentrations of these species in dust samples collected from your home. This precision approach helps physicians identify whether mold exposure is a factor in your symptoms and guides remediation priorities.
The 5 Mold Species Tested in HERTSMI-2
Each of these five molds is a known producer of mycotoxins—toxic compounds that trigger inflammatory responses in susceptible individuals.
Aspergillus penicillioides is a common water-damaged building mold that thrives in humid environments like those found throughout the Dallas area. It produces secondary metabolites that can activate inflammatory pathways.
Aspergillus versicolor is another water-damage indicator species frequently found in moisture-compromised buildings. It's particularly problematic because it colonizes drywall and insulation—common materials in North Texas homes.
Chaetomium globosum is a cellulolytic mold that breaks down plant material and building materials. It's often found in water-damaged paper, cardboard, and wood products.
Stachybotrys chartarum, commonly called "black mold," is perhaps the most infamous water-damage mold. It produces potent mycotoxins and is a key indicator of serious moisture problems in buildings.
Wallemia sebi is a xerophilic (dry-loving) mold that can survive in low-moisture environments. Its presence suggests either chronic low-level moisture or conditions that were wet in the past.
How HERTSMI-2 Scoring Works
HERTSMI-2 results are reported as a single numerical score that represents the total DNA concentration of the five target molds in your dust sample.
Score Interpretation:
- Score below 2: Considered a healthy building with low mold burden
- Score 2–10: Borderline; may warrant further investigation or remediation
- Score above 10: Indicates significant water-damaged building mold contamination; remediation is typically recommended
Your physician uses this score to assess whether mold exposure may be contributing to your symptoms and to track progress after remediation efforts. A follow-up test after mold removal should show a significant drop in the HERTSMI-2 score.
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HERTSMI-2 vs. ERMI: Understanding the Difference
You may have heard of ERMI testing—the Environmental Relative Moldiness Index. Both tests use DNA analysis, but they serve different purposes.
ERMI tests for 36 different mold species and is useful for general building assessment and comparing your home's mold profile to national averages. It's a broader screening tool.
HERTSMI-2 is a subset of ERMI that focuses only on the five species most strongly linked to CIRS. It's more targeted and is the test of choice when CIRS or mold illness is suspected.
Think of it this way: ERMI is like a complete blood panel, while HERTSMI-2 is like checking specific markers for a particular condition.
Many physicians treating CIRS patients specifically request HERTSMI-2 because it cuts through the noise and focuses on what matters most for mold-related inflammatory disease. If you're unsure which test your doctor wants, ask directly—we offer both ERMI testing in Dallas and HERTSMI-2 at Mold Testing Dallas.
Who Needs HERTSMI-2 Testing in the Dallas Area?
HERTSMI-2 testing is recommended for:
- People diagnosed with CIRS who need to identify mold as a contributing factor
- Patients following the Shoemaker Protocol, which uses HERTSMI-2 as a key diagnostic and monitoring tool
- Anyone whose physician has specifically recommended HERTSMI-2 testing
- People with unexplained inflammatory symptoms (fatigue, cognitive issues, joint pain, respiratory problems) who suspect mold exposure
- Individuals moving into or purchasing a home where mold damage is suspected and CIRS risk is a concern
If you have what is CIRS or suspect mold illness, don't guess—test. HERTSMI-2 provides the objective data your doctor needs to make informed decisions about your health.
How Our Team Collects HERTSMI-2 Samples
HERTSMI-2 testing requires careful dust sampling from specific locations in your home. Our TDLR-licensed inspectors follow standardized protocols to ensure accurate results.
Our process includes:
- Visual inspection — We assess your home for signs of water damage, moisture, or mold growth
- Sample collection — We collect dust samples using specialized equipment from predetermined locations (typically bedroom, living areas, and HVAC returns)
- Chain of custody — Samples are sealed, labeled, and documented to maintain integrity
- Lab analysis — Samples are sent to an accredited laboratory for DNA analysis
- Results report — You receive a detailed report with HERTSMI-2 scores and recommendations
The entire process typically takes 1–2 hours. Results are usually available within 7–10 business days.
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Working with Your Physician: Our Role and Theirs
Here's what's important to understand: Our inspectors test your home. Your doctor treats your health.
We provide the data—the HERTSMI-2 score, the specific molds detected, and the locations where samples were collected. Your physician interprets that data in the context of your symptoms, medical history, and other diagnostic findings.
If your HERTSMI-2 score is elevated, your doctor may recommend:
- Remediation of water-damaged areas
- Improved ventilation and humidity control
- Avoidance of the affected space during remediation
- Follow-up testing after remediation is complete
- Additional testing like air quality testing in Dallas or Visual Contrast Sensitivity
We're here to provide accurate, reliable testing. Your doctor is here to guide your care. This partnership—between our testing, your physician's expertise, and your commitment to remediation—is what drives real health improvement.
Finding HERTSMI-2 Testing in Dallas and North Texas
If you live in the Dallas metro or DFW metroplex, finding a qualified HERTSMI-2 testing provider matters. Not all mold testing companies offer HERTSMI-2, and not all inspectors understand CIRS or the Shoemaker Protocol.
At Mold Testing Dallas, our founder Ethan Wright is a TDLR-licensed mold assessment consultant with expertise in CIRS-related testing. Our team performs direct mold testing services, including HERTSMI-2, throughout Dallas and the surrounding area. We're not a referral service—our certified professionals conduct your inspection and collect your samples.
HERTSMI-2 testing costs typically range from $300–$400, depending on the size of your home and the number of samples needed. We can provide a free quote when you schedule your inspection.
Dallas's humid subtropical climate, combined with the area's heavy clay soil and occasional water intrusion issues, means many homes have moisture problems. Whether you're in North Dallas, South Dallas, or the suburbs, our team can assess your home and provide the testing data your doctor needs.
Frequently Asked Questions About HERTSMI-2 Testing
Q: How long does it take to get HERTSMI-2 results?
A: Lab analysis typically takes 7–10 business days after we submit your samples. You'll receive your report by email, and we can discuss the findings with you over the phone. If you need results faster, ask us about expedited processing options.
Q: Can HERTSMI-2 testing identify where mold is growing in my home?
A: HERTSMI-2 measures mold DNA in dust and indicates overall mold burden, but it doesn't pinpoint specific locations where mold is actively growing. Our visual inspection during sampling may identify visible mold or moisture damage. If you need precise location data, a comprehensive mold inspection with air sampling may be more appropriate.
Q: Do I need to leave my home during HERTSMI-2 sampling?
A: No. Our inspectors work quickly and non-invasively. You can stay in your home during the inspection and sampling process. Just avoid vacuuming or creating dust during the 1–2 hours we're there.
Q: What should I do if my HERTSMI-2 score is elevated?
A: Share your results with your physician immediately. They may recommend a moisture assessment, professional remediation, or a follow-up test after repairs. Don't panic—elevated scores are actionable information, not a diagnosis.
Q: Can HERTSMI-2 testing predict whether I'll develop CIRS symptoms?
A: No. HERTSMI-2 identifies mold exposure, but whether someone develops CIRS depends on genetics, immune function, and individual susceptibility. Some people with high exposure remain asymptomatic; others develop symptoms at lower exposures. Your doctor will help determine if mold is a factor in your specific case.
Q: Is HERTSMI-2 covered by insurance?
A: Most health insurance plans do not cover HERTSMI-2 testing, as it's considered an environmental assessment rather than a medical procedure. However, some HSA/FSA accounts may cover it. Check with your insurance provider. At $300–$400, HERTSMI-2 is an affordable way to get definitive answers.
Q: Should I remediate before or after HERTSMI-2 testing?
A: Test first. HERTSMI-2 establishes a baseline and confirms whether remediation is needed. After remediation is complete, a follow-up test verifies that mold levels have dropped to acceptable levels.
Take Action: Get Your HERTSMI-2 Testing Today
If you suspect mold is affecting your health, or if your physician has recommended HERTSMI-2 testing, don't wait. The Dallas metro's humidity and climate create ideal conditions for water-damaged building molds. The sooner you test, the sooner you and your doctor can develop a treatment plan.
Mold Testing Dallas is ready to help. Our TDLR-licensed inspectors provide professional HERTSMI-2 testing throughout Dallas and North Texas. We collect your samples, send them to an accredited lab, and deliver clear, actionable results.
Schedule your HERTSMI-2 inspection today or call us at 469-298-8690 for a free quote. You can also email golivewellhome@gmail.com with questions.
Your health matters. Let's get you answers.