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.
Monitoring the indoor humidity is not a guarantee that mold will not develop. Indoor air at 75F and 60% RH that comes in contact with an exterior wall with an interior surface temperature at 63F will have a surface RH of 90%.elative humidity is expressed as a measure of the amount of water vapor the air contains as a percentage of the total amount it could contain at a specific temperature. If you think of air as a paper towel for a moment, it can only hold a specific amount of water at a specific temperature.