Gary G. Lynch is vice chairman and global general counsel for Bank of America, responsible for overseeing the companyâs legal functions and its relationships with regulatory and law enforcement authorities around the world. Based in New York, he is a member of the bankâs executive management team.
Sometimes, humidity or dampness (water vapor) in the air can supply enough moisture for mold growth. Indoor relative humidity (RH) should be kept below 60 percent -- ideally between 30 percent and 50 percent, if possible. Low humidity may also discourage pests (such as cockroaches) and dust mites.
Mold. Where It Can Grow. It is normal to find some mold spores in the air and a few mold spores on some surfaces. Unless large numbers of spores become airborne, there is usually little problem. However indoor mold growth on surfaces and materials is abnormal. Mold growth occurs when mold spores settle on a surface at the proper temperature, with appropriate food sources, and with the proper amount of moisture. An adequate amount of moisture in materials is typically the limiting factor preventing mold growth as well as the easiest to control.