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Allergens

Mold Allergen Test

Two common mold allergens, Alternaria and Aspergillus, from one dust sample.

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

Measures the allergens from two molds found in many homes: Alternaria (Alt a 1) and Aspergillus (Asp f 1). It measures the allergen in your dust, not mold growth; for that, see our mold DNA tests. Each is reported in nanograms per gram of dust.

  • Alternaria Mold (Alt a 1)
  • Aspergillus Mold (Asp f 1)

In the box

  • Dust trap attachment for your own household vacuum
  • Prepaid USPS return mailer
  • Labeled sample collection bag
  • Step-by-step illustrated instructions
  • Your report, by email

When to order

A damp or musty room, after water damage has been fixed, or alongside a mold DNA test to see the allergen side.