If your building has had any type of water incursion, from a leak to a natural disaster, you can best protect your health and your building by getting immediate professional help to remove the flood water and monitor the drying and dehumidifying process. The next step is to get a visual inspection of the affected areas, along with indoor air quality testing, which can offer early detection of a mold problem in an unseen area like the inside of a wall, or beneath carpet. Containing and removing the mold and any mold-infested materials, treating the remaining materials with antimicrobial substances provides a lasting and dependable defense against mold re-growth. Depending on how widespread the mold is in your building, you may also need to clean the air ducts and vents to prevent airborne mold spores from starting a new problem in a different part of your home or office.