ERMI Mold Test
Find out if your home is making you sick
An at-home dust-collection test that uses qPCR to quantify 36 mold species in your home and scores results against the EPA's Relative Moldiness Index (RMI).
$369$461Save $92
HSA / FSA eligible
Free shippingSpecimen:DustCollection:SelfCLIA-certified lab:EnviroBiomicsResults:5 days
Simple Process
How it works
From order to results in three easy steps — collect dust at home, mail it back, and get an EPA-style RMI score.
1
Get Your Collection Kit
Your ERMI dust-collection kit arrives within a few days. It includes a Swiffer cloth plus a prepaid return envelope.
2
Collect Dust & Mail Back
Collect dust from two rooms — typically your living room and bedroom — using the provided Swiffer. Drop the sample in the mail using the prepaid label.
3
Receive Your Results
Within 5 business days, you'll receive your ERMI score (Q1–Q4+) and a HERTSMI-2 assessment showing which of the 36 mold species were detected and at what concentration.
Is This Right for You?
This test is designed for people who
If any of these apply, this test can give you clarity and peace of mind.
Live or work in a building with known water damage, musty odors, or visible mold growth
Have experienced a flood, roof leak, or plumbing issue and want to check for hidden mold contamination
Experience unexplained fatigue, headaches, or respiratory symptoms that improve when away from home
Want to test your environment before or after mold remediation to verify the space is safe
Are buying or renting a new home and want an EPA-developed score for indoor mold burden
Prefer a simple at-home dust collection — no inspector or technician needed
36 Markers · 2 Categories
What your report covers
36 mold species detected by quantitative PCR and scored against the EPA’s Relative Moldiness Index (RMI) reference of 1,096 U.S. homes.
Water damage indicators
26 markersAspergillus flavusAflatoxin producer
Aspergillus fumigatusRespiratory pathogen
Aspergillus nigerCommon black mold
Aspergillus ochraceusOchratoxin producer
Aspergillus penicillioidesWater-damage indicator
Aspergillus restrictusWater-damage indicator
Aspergillus sclerotiorumWater-damage indicator
Aspergillus sydowiiWater-damage indicator
Aspergillus unguisWater-damage indicator
Aspergillus versicolorSterigmatocystin producer
Aureobasidium pullulansWet-surface mold
Chaetomium globosumWater-damage indicator
Cladosporium sphaerospermumDamp-surface mold
Eurotium amstelodamiStored-dust mold
Paecilomyces variotiiWater-damage indicator
Penicillium brevicompactumMycophenolic acid producer
Penicillium corylophilumWater-damage indicator
Penicillium crustosumWater-damage indicator
Penicillium purpurogenumWater-damage indicator
Penicillium spinulosumWater-damage indicator
Penicillium variabileWater-damage indicator
Scopulariopsis brevicaulisWater-damage indicator
Scopulariopsis chartarumWater-damage indicator
Stachybotrys chartarumToxic black mold
Trichoderma virideWater-damage indicator
Wallemia sebiDust & dry-environment mold
Common indoor molds
10 markersAcremonium strictumSoil & plant-debris mold
Alternaria alternataMajor airborne allergen
Aspergillus ustusOpportunistic skin pathogen
Cladosporium cladosporioides 1Prevalent airborne mold
Cladosporium cladosporioides 2Allergy-triggering spore
Cladosporium herbarumCold-tolerant outdoor mold
Epicoccum nigrumHay-fever trigger
Mucor amphibiorumFast-growing soil mold
Penicillium chrysogenumDominant household Penicillium
Rhizopus stoloniferBlack bread mold
Trusted by Thousands
What customers say
Real results from real people taking control of their indoor environment.
★★★★★
“Found the source of my family’s chronic symptoms”
We’d been dealing with headaches and sinus issues for over a year. Doctors couldn’t find anything. Our ERMI score came back high with elevated Stachybotrys in our basement. We got the mold remediated and within weeks everyone started feeling better.
★★★★★
“Saved us from buying a mold-contaminated house”
We were about to close on a home that looked perfect. The ERMI test came back in the Q4+ range with multiple Aspergillus species. The home inspector had missed it entirely. We walked away and dodged a major health and financial bullet.
★★★★★
“Confirmed our remediation actually worked”
After spending thousands on mold removal, I wanted proof the job was done right. I tested before and after — the first test showed a high RMI with elevated Chaetomium, and the follow-up came back in the green quartile. Worth every penny for the peace of mind.