Helpful Tips in Preventing Mold Growth
- Keep humidity levels in your home as low as you can—no higher than 50%--all day long. An air conditioner or dehumidifier will help you keep the level low. You can buy a meter to check your home’s humidity at a home improvement store. Humidity levels change over the course of a day so you will need to check the humidity levels more than once a day.
- Be sure the air in your home flows freely. Use exhaust fans that vent outside your home in the kitchen and bathroom. Make sure your clothes dryer vents outside your home.
- Fix any leaks in your home’s roof, walls, or plumbing so mold does not have moisture to grow.
- Clean up and dry out your home fully and quickly (within 24–48 hours) after a flood.
- Clean bathrooms with mold-killing products.
- Remove or replace carpets and upholstery that have been soaked and cannot be dried right away.
- To learn more about preventing mold in your home, see the Environmental Protection Agency’s book A Brief Guide to Mold, Moisture, and Your Home at