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Mold

ERMI Mold Test

A DNA test for the 36 mold species in the ERMI index. Your home’s score is compared with a national survey of U.S. homes.

Turnaround

Ships free in 1–2 business days, with a prepaid return label.

Cancel any time before it ships. Kits can’t be returned once shipped. Refund policy

Not available in Colorado, District of Columbia, Florida, New Hampshire, New York and Texas. California and Oklahoma orders need a short acknowledgment at checkout.

What it finds

Your home’s settled dust is tested for the DNA of 36 mold species: 26 that point to water damage and 10 common outdoor ones. The result is an ERMI score, compared with a national survey of U.S. homes, so the number comes with context.

  • Aspergillus flavus/oryzae
  • Aspergillus fumigatus
  • Aspergillus niger
  • Aspergillus ochraceus
  • Aspergillus penicillioides
  • Aspergillus restrictus
  • Aspergillus sclerotiorum
  • Aspergillus sydowii
  • Aspergillus unguis
  • Aspergillus versicolor
+ 27 more
  • Aureobasidium pullulans
  • Chaetomium globosum
  • Cladosporium sphaerospermum
  • Eurotium (Aspergillus) amstelodami
  • Paecilomyces variotii
  • Penicillium brevicompactum
  • Penicillium corylophilum
  • Penicillium crustosum
  • Penicillium purpurogenum
  • Penicillium spinulosum
  • Penicillium variabile
  • Scopulariopsis brevicaulis/fusca
  • Scopulariopsis chartarum
  • Stachybotrys chartarum
  • Trichoderma viride
  • Wallemia sebi
  • Acremonium strictum
  • Alternaria alternata
  • Aspergillus ustus
  • Cladosporium cladosporioides (type 1)
  • Cladosporium cladosporioides (type 2)
  • Cladosporium herbarum
  • Epicoccum nigrum
  • Mucor amphibiorum (Mucor and Rhizopus group)
  • Penicillium chrysogenum (type 2)
  • Rhizopus stolonifer
  • ERMI score, compared with a national survey of U.S. homes

In the box

  • Swiffer dust cloth (pre-cut, collection-ready)
  • Labeled collection bag
  • Prepaid return shipping mailer
  • Step-by-step illustrated instructions
  • Your report, by email

When to order

Your first look at mold when nothing is visible: a musty smell, a past leak, a move, or before and after a renovation. It gives you a number you can track over time.