A DNA-based laboratory test that analyzes a settled dust sample to identify and quantify mold species and produce an ERMI score, as a standalone service or alongside an assessment.
ERMI stands for Environmental Relative Moldiness Index. It is a DNA-based laboratory test developed using mold-specific quantitative PCR analysis. Rather than sampling the air at a single moment, ERMI analyzes a settled dust sample collected from the property, which can reflect mold conditions that have accumulated over a longer period of time.
The collected dust sample is sent to an accredited laboratory, which uses DNA-based analysis to identify and quantify a defined panel of mold species and calculate an ERMI score. This is a different method from standard air sampling, and some clients request it specifically, either as a standalone test or alongside one of the assessment packages.
A Home Enviro assessor conducting fieldwork during an inspection visit. Dust samples for ERMI testing are collected separately from thermal imaging shown here.
Clients who specifically want a DNA-based dust analysis and an ERMI score, rather than or in addition to standard air sampling.
ERMI analyzes settled dust rather than a moment-in-time air sample, which some clients prefer for health-related concerns or when a documented ERMI score is specifically required or requested.
Available for any property size or type. ERMI is a testing method, not a full inspection, so it is often booked on its own or added alongside one of the assessment packages.
Standard air sampling captures airborne spores present at the moment of testing. ERMI instead analyzes settled dust using DNA-based laboratory methods and produces a distinct ERMI score rather than an air sample count.
A settled dust sample is collected from the property using the method specified by the laboratory's ERMI test kit.
The dust sample is sent to an accredited laboratory, which uses DNA-based analysis to identify and quantify a defined panel of mold species.
The laboratory results are used to calculate an ERMI score, which is provided to the client. The full laboratory report itself is not published; results are reviewed privately.
A DNA-based dust analysis and ERMI score, available on its own or added to an assessment package.
Unlike standard air sampling, ERMI evaluates mold DNA present in settled dust.
See the full Price List for all available packages and services.
The Sigma packages combine a full visual assessment with standard laboratory air sampling for homes up to 2,500 sq. ft., starting at $425.
See Sigma Mold Assessment + Testing →The Beta Package combines a focused assessment of one room or area with standard laboratory air sampling for $325.
See the Beta Package →ERMI (Environmental Relative Moldiness Index) testing uses DNA-based laboratory analysis to identify and quantify selected mold species from a collected dust sample. Unlike standard air sampling, ERMI evaluates mold DNA present in settled dust and provides an ERMI score based on the laboratory results.
Standard air sampling captures airborne mold spores present at the moment of sampling. ERMI instead analyzes settled dust that has accumulated over time, using DNA-based laboratory methods to identify and quantify specific mold species and calculate an ERMI score.
ERMI testing is often requested by clients who want a DNA-based dust analysis in addition to, or instead of, standard air sampling, such as for health-related concerns or when a documented ERMI score is specifically needed.
Same-day appointments available throughout Broward, Palm Beach, and Miami-Dade. Licensed and independent: Home Enviro inspects only, never remediates.
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