If you live in a remote area, can’t find a good mold inspector or are on a budget, IET, Inc. can work with you to test different areas of your home via mail. We provide instructional videos on how to collect samples with swabs, clear Scotch tape or a rented air sampler. Collecting samples for analysis is fairly easy, interpreting the results not so much, that’s where our many years of experience help. Simply email us at info@airinspector.com to get started and we will get you started with testing your home or office.


There are many places for mold to hide and for some individuals with the HLA-DR gene or folks with Lyme Disease, just a bit of mold can greatly affect them. After testing thousands of homes, Martine Davis has developed a checklist of specific areas that should be tested if you suspect mold is making you ill. Some examples are:

  • Underneath kitchen sink base cabinet (behind the toe kick)
  • Behind dishwasher
  • Underneath the bathroom vanity shelf (behind the toe-kick)
  • Supply vent duct in bedroom, office, etc
  • Air Conditioning Coil in furnace
  • Wall cavities below leaky windows
  • Under refrigerator
  • Inside furnace mounted humidifier
  • On dehumidifier filter or coil
  • In air cleaner carbon filter
  • Underneath or in the back of furniture
  • Underneath carpeting, especially if pet accidents occurred
  • On floor joists in basements and crawlspaces
  • Between fiberglass insulation and vapor barriers in walls
  • Behind baseboards in damp areas (Laundry room, bathrooms, basement)
  • On fridge door gaskets or washer gaskets
  • In corners of damp or crowded closets
  • In attics: in insulation, rafters, sheathing
  • Underneath basement stairs

Air sampling is not helpful if mold is growing in these areas. Most of the time, an air sample (called a spore trap or culture plate) will detect only normal mold counts near these contaminated areas. Even ERMI testing (DNA testing) may not detect molds hiding in such areas. There are numerous cases of low ERMI scores in homes where substantial mold contamination exists in the basement, crawlspace, or in wall cavities. So homeowners must be their own investigator and look for mold with a high quality LED flashlight. Any suspicious areas can easily be tested by submitting samples collected with Scotch tape or swabs and mailed to our Wisconsin office. Call 800-MY-AIR-TEST or email info@airinspector.com to get started.