Asbestos

About

Asbestos fibres are 50 to 200 times thinner than human hair, making it practically invisible to the naked eye. Once disturbed, asbestos can linger in the air for very long periods, and has been found to cause a number of health risks through inhalation.

Asbestos testing is extremely important if you're purchasing a new commercial property (and it was built before 1990), especially if you want to renovate.