ERMI is a DNA-based dust test developed by the EPA. It measures 36 mold species — divided into Group 1 (water-damage-associated) and Group 2 (common, outdoor molds). The result is a numerical “ERMI Score” showing the relative mold burden of the home.

At Restored Roots, we often reference Q1 through Q4 levels within each group:

• Q1 (Safe Range): Typical for healthy indoor environments

• Q2 (Slightly Elevated): Slight signs of water damage or residual spores

• Q3 (Elevated): Indicates a current or recent water intrusion problem

• Q4 (High): Significant contamination and health risk

While the overall ERMI score can be informative, we focus more on the species-specific results and which molds are driving the elevation — this gives a clearer picture of the environment and helps tailor the remediation plan.

HERTSMI-2 is a simplified test derived from ERMI data, focusing on five particularly impactful molds known to affect individuals with mold illness or CIRS:

• Aspergillus penicillioides

• Aspergillus versicolor

• Chaetomium globosum

• Stachybotrys chartarum

• Wallemia sebi

The results are scored numerically:

• 0–10: Safe for most individuals

• 11–15: Borderline or cautionary

• 16+: Unsafe for sensitive individuals

We use HERTSMI-2 data as a post-remediation performance indicator, especially for clients working with health practitioners. Our SPC guarantee includes meeting a HERTSMI-2 score of 10 or lower on post-testing.

Air sampling draws indoor and outdoor air through a spore trap cassette to measure airborne mold spores. Comparing indoor results to outdoor “control” samples helps determine if indoor spore counts are abnormal.

These surface tests collect samples from visible growth or dust film. A microscope or culture identifies the mold species and whether it’s active or inactive.

These tests are useful for:

• Confirming whether staining is biological or simply discoloration

• Checking specific suspect areas (e.g., window sills, baseboards, subflooring)

• Providing quick confirmation during inspections or post-remediation

The EMMA test measures both mold DNA and mycotoxins in a single sample, usually collected from dust and air filters.
It identifies:

• Which mold species are present, and

• Whether those molds are actively producing mycotoxins (toxins released during growth or decay)

This dual-approach helps determine whether exposure risks remain even when visible mold is gone. EMMA testing is often used post-remediation to confirm that environmental mycotoxin levels are safe and stable.

Since mold cannot grow without moisture, identifying the water source is the first and most critical step.
We often work from an IEP’s moisture map or perform our own pre-remediation evaluation using:

• Infrared (thermal) imaging: Detects cool areas where moisture collects behind walls or under floors

• Moisture meters: Measure saturation levels in materials

• Visual and tactile inspection: Detects subtle staining, warping, or softness in building materials

Addressing the cause of water intrusion is essential to ensure long-term success — otherwise, mold will simply return.

These medical tests measure mycotoxin load within the body — offering insight into current exposure or residual burden from a contaminated environment.
They are ordered and interpreted by healthcare providers, not remediation companies.
Common tests include:

• Urine mycotoxin panels: Detect mycotoxins excreted through detox pathways

• Bloodwork or organic acid tests: Evaluate inflammatory or metabolic markers related to mold exposure

Although we don’t perform or interpret medical tests, Restored Roots Remediation frequently coordinates with clients’ practitioners to ensure environmental remediation supports overall recovery.