How do you test for harmful mold?

The process of checking for dangerous mold in a home or business involves a thorough examination, taking samples, and conducting tests done by expert mold inspectors. 


Initially, mold inspectors perform a comprehensive visual inspection of the building. They carefully examine the areas that are susceptible to the development of mold by closely observing them through: 

  • Water leakages
  • High humidity spots
  • Damp surfaces
  • Degraded materials


Once the examination indicates the presence of mold infestation, the subsequent action entails obtaining samples. There are two primary varieties of samples that are gathered: 

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  1. Air samples can be used to identify the presence of mold spores in the atmosphere, which can be detrimental to one’s health. 
  2. Surface samples are gathered from current mold colonies to determine the specific kind of mold present. 

Lab Testing

After gathering the samples, they are subsequently delivered to a laboratory for examination in order to detect the presence of mold. Mold testing kits are used for this purpose.

  • Air samples are examined under a microscope to identify the mold species and spore concentration.
  • Surface samples are cultivated in the lab to determine the type of mold and its severity.

Preventive Measures Post Testing

If the test results confirm the presence of harmful mold:

  • Mold remediation processes should be conducted by professionals.
  • To avoid the growth of mold in the future, it is important to implement preventive actions, such as fixing any leaks and ensuring a balanced humidity level is maintained. 

It is important to approach the testing of harmful mold with seriousness because it can have negative impacts on human health. That is why it is recommended to enlist the assistance of experts to guarantee proper protocols are adhered to. 


I enjoy acquiring knowledge and sharing it. I am a long-time health advisor and blogger for over 12 years. Understanding the dangers of black mold to people, I felt it necessary to share with readers the basics of fighting and preventing black mold in homes and other living spaces.

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