Mold Basics The key to mold control is moisture control. If mold is a problem in your home, you should clean up the mold promptly and fix the water problem. It is important to dry water-damaged areas and items within 24 to 48 hours to prevent mold growth. Can Mold Cause Health Problems? Molds are usually not a problem indoors, unless mold spores land on a wet or damp spot and begin growing. Molds have the potential to cause health problems. Molds produce allergens (substances that can cause allergic reactions), irritants and, in some cases, potentially toxic substances (mycotoxins). Inhaling or touching mold or mold spores may cause allergic reactions in sensitive individuals. Allergic responses include hay fever-type symptoms, such as sneezing, runny nose, red eyes, and skin rash (dermatitis). Allergic reactions to mold are common. They can be immediate or delayed. Molds can also cause asthma attacks in people with asthma who are allergic to mold. In addition, mold exposure can irritate the eyes, skin, nose, throat and lungs of both mold-allergic and non-allergic people. Symptoms other than the allergic and irritant types are not commonly reported as a result of inhaling mold. Research on mold and health effects is ongoing. This article provides a brief overview; it does not describe all potential health effects related to mold exposure. For more detailed information, consult a health professional. You may also wish to consult your state or local health department. Moisture and Mold Prevention and Control Tips Moisture control is the key to mold control, so when water leaks or spills occur indoors, ACT QUICKLY. If wet or damp materials or areas are dried within 24 to 48 hours after a leak or spill happens, in most cases, mold will not grow. Clean and repair roof gutters regularly. Make sure the ground slopes away from the building’s foundation so that water does not enter or collect around the foundation. Keep air-conditioning drip pans clean and the drain lines unobstructed and flowing properly. Keep indoor humidity low. If possible, keep indoor humidity below 60% relative humidity (ideally, between 30% to 50%). Relative humidity can be measured with a moisture or humidity meter, which is a small, inexpensive instrument (from $10 to $50) that is available at many hardware stores. If you see condensation or moisture collecting on windows, walls or pipes, ACT QUICKLY to dry the wet surface and reduce the moisture/water source. Condensation can be a sign of high humidity. Five Things You Should Know About Mold 1. Potential health effects and symptoms associated with mold exposure include allergic reactions, asthma, and other respiratory complaints. 2. There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture. 3. If mold is a problem in your home, you must clean up the mold and eliminate sources of moisture. 4. Fix the source of the water problem or leak to prevent mold growth. 5. Reduce indoor humidity (to 30% to 60%) to decrease mold growth by: a. venting bathrooms, dryers, and other moisture-generating sources to the outside; b. using air conditioners and dehumidifiers; c. increasing ventilation; and d. using exhaust fans whenever cooking, dishwashing, and cleaning. |