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).

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.

Get Your Collection Kit

Your ERMI dust-collection kit arrives within a few days. It includes a Swiffer cloth plus a prepaid return envelope.

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.

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 indicators26 markers

Aspergillus 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 molds10 markers

Acremonium 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.

Stephanie H.38

★★★★★

“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.

Mark T.45

★★★★★

“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.

Lauren P.33

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).

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.

Get Your Collection Kit

Your ERMI dust-collection kit arrives within a few days. It includes a Swiffer cloth plus a prepaid return envelope.

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.

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 indicators26 markers

Aspergillus 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 molds10 markers

Acremonium 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”

Stephanie H.38

★★★★★

“Saved us from buying a mold-contaminated house”

Mark T.45

★★★★★

“Confirmed our remediation actually worked”

Lauren P.33