The easiest method of black mold removal from porous materials is to simply throw away the infected object. A carpet that has developed the typical symptoms of mold, such as black or dark green spots should be thrown away because it could spread mold spores to other areas of the house. Books or files that are infected should also be thrown away or left under the sun for a good while. Sunlight can kill the black mold quite effectively by drying out the moisture that fungi need in order to grow. Bigger items such as mattresses should be thrown away since disinfecting it would be a difficult process.
When black mold has taken root in porous materials such as wood and concrete you will need to take a different approach. A professional would first find out the exact spot where the infection has occurred and would then remove portions of the wall or floor to get to the mold spores. Next, they would remove any dark or discolored portions of the wall so as to eliminate the contaminated area completely. A strong disinfectant should then be used on the area. This is the best way to go about eliminating mold that has penetrated deep into porous materials.
Another way of removing black mold from porous materials is by using a strong disinfectant such as borax powder. When mixed with water, it will penetrate any porous material, killing the spores and destroying their roots. It is best to pour one glass of borax into one gallon of water, stirring until the powder is completely dissolved. Before cleaning the affected area you should take certain precautions such as wearing donning gloves and a face mask. The spores of the fungus are tiny filaments that can move easily with any air currents created by your movements. Because of this, it is important to close all doors and windows while you are cleaning and disinfecting the area, so as not to allow the spores to spread to other rooms.
Before you begin scrubbing the contaminated area, you should first moisten it with a few sprays of water to reduce the chance of mold spores becoming airborne. The next step is to clean the area with a detergent and a strong brush, concentrating on any crevices or fractures that can harbor fungi. Once this is done you can begin disinfecting the area. To do this, pour the borax and water mixture onto the infected area, making sure the entire area is covered. The borax will penetrate deep into the porous material, killing the roots and making the area inhabitable by other fungi. Repeat this black mold removal process a few days later in order to prevent any recurrence of the infection.
Baking soda and water can also be used effectively against the roots of the spores. Similar to the borax and water method, baking soda should be dissolved in water and poured or sprayed onto the affected area. Concrete and other porous materials can be treated effectively in this way, protecting the area with the residues left during the cleansing process.