Please note: Dead mold may still cause allergic reactions in some people, so it is not enough to simply kill the mold, it must also be removed.
Certain molds produce mycotoxins which, depending on the exposure level, can cause health effects. Both active and inactive molds can pose potential health hazards. Health effects from mold can be acute from short-term high exposures or chronic from long-term exposure to lower levels.
Inactive mold can be spread suddenly due to disturbance during remodeling, after a water damage event or due to elevated humidity. A severe mold problem can cause decay in the home and can lead to unintended negative health consequences.
Cleaning or mold removal should be done after mold is inactivated. Inactive mold can be readily vacuumed or wiped away using dry surface-cleaning methods with minimal additional damage.
Depending on the species, mold can stay dormant for years in the right circumstances. Certain species of mold can remain dormant for hundreds of years. This is due to being present in the perfect environment. Keeping your humidity level between 30%-60% helps manage the prevention of mold growth.
When mold becomes inactive, the now dry mold spores become light as they do not have moisture weighing them down. This weightlessness allows them to become airborne rather easily. Airborne spores are the easiest ways for mold to spread and to find areas with the proper conditions to then become active again.
When mold dries out and becomes temporarily inactive, it is considered “dead” mold. This happens when mold is killed, perhaps with bleach, but not removed. Dead mold appears flaky and powdery, unlike living mold that appears moist and grows in various colors, such as white, black, or yellow.
Although symptoms can vary, the most common symptoms seen in people exposed to mold indoors include: Nasal and sinus congestion. Eye irritation, such as itchy, red, watery eyes. Wheezing and difficulty breathing.
According to the Environmental Protection Agency (EPA), “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.” Even if you clean the mold, it will come back if the room is humid and poorly ventilated or if there is ...
Both active and inactive mold can have a distinctive smell, which most people describe as musty. Active mold in the early stages of a bloom has hair-like filaments in webs, which develop a more bushy appearance as the bloom matures.
It is also very important that there is adequate ventilation in the room. Open a window or door so the mold spores can escape, instead of staying locked in your home.
The mold spores will not grow if moisture is not present. Indoor mold growth can and should be prevented or controlled by controlling moisture indoors. If there is mold growth in your home, you must clean up the mold and fix the water problem.
Further, research has shown that the mycotoxins (mold poisons), produced by some molds, are produced on the surface of the spore and continue to get into the air even if the mold is nonviable (dead).
For instance, when there is water intrusion in your home, whether it's from flood damage or even a minor leak, within 48 hours, mold spores that have been dormant or have come from outside will start to feed on the wet materials in your home. These mold spores produce mold toxins called mycotoxins.
Bleach kills virtually every species of indoor mold that it comes into contact with including mold spores which leaves a sanitized surface making it resistant to future mold growth.
Some people are sensitive to molds. For these people, exposure to molds can lead to symptoms such as stuffy nose, wheezing, and red or itchy eyes, or skin. Some people, such as those with allergies to molds or with asthma, may have more intense reactions.
If a mold problem is fixed properly, you can rest easy. It is not going to suddenly come back without warning in 5 years. Unless: the water problem is not fixed. In other words, the cause of all mold problems is: water.
Even dry, dead mold can cause health problems, so always take precautions when you suspect mold. Mold is often found in areas where water has damaged building materials and furniture from flooding or plumbing leaks.
Mold grows faster in the summer months. However, winter doesn't always mean we are in the clear. Mold loves the dark spaces in our homes. Although it does not grow at temperatures below freezing, mold can survive in dormancy and await the coming spring.
Allergic symptoms from fungus spores are most common from July to early fall. Fungi grow in many places. They can grow both indoors and outside, so allergic reactions can occur year-round.
What is Considered A Normal Mold Count? A normal mold spore count in a room is typically 200-500 spores. Anywhere between 1-1500 mold spores in a room is normal and safe as long as mold colonies are not visibly growing and no water damage is present. Mold spores are present in virtually every room of every building.
So, dehumidifiers don't kill mould, but they can help to prevent it from growing inside your home by reducing humidity. However, the best way to deal with it is to get rid of its source.
While mold needs moisture to grow, the source does not always have to be water leakage. Mold can grow anywhere even when there is no water present.