Confirm that all drain traps in areas which only you have access are filled. Check water in seldom used toilets once each week. If low, flush. Traps are filled at least once per week. Need help filling traps regularly.
Many people have allergic reactions to mold and mildew.
Mold and mildew can grow almost anywhere that offers a food source and a small amount of moisture, whether from leaks and spills or condensation. Mold and mildew do not require standing water in order to grow. The higher the relative humidity, the higher the probability of fungal growth. Inspect the building for signs of moisture, leaks, or spills. Check for moldy odors.