How do I use the Envirotester?
The best method is to hold the tester in front of an air duct that has forced air emerging for sixty seconds. Then store the unit in a warm place (70 to 95 degrees Fahrenheit) for 24 to 72 hours. Follow the instructions that come with the unit to compare the results to the chart and determine if you have the presence of mold, yeast or bacteria and to what degree.