Allergen Master offers a free, no obligation test to determine the level of contamination in the mattress. No matter how new it is, how often you change the sheets, or if you have a hypoallergenic mattress cover, you'll be amazed with the results of the test.

Here's how it's done:

• We simply turn down a corner of your bed linens

• Collect a small sample in a test cloth and show you the result

We will then test the sediment using a simple color-coded chart that reflects the concentration of guanine present. Guanine, a combination of mite feces and saliva, is the substance that triggers health problems.