The purpose of mold remediation is to remove the mold to prevent human exposure and
damage to building materials and furnishings.
It is necessary to clean up mold contamination, not just to kill the mold.
Dead mold is still allergenic, and some dead molds are potentially toxic. The use of Biocides, such as chlorine bleach, is not recommended as a routine practice during mold remediation,
although there may be instances where professional judgment may indicate use (for example,
when immune-compromised individuals are present). In most cases, it is not possible or
desirable to sterilize an area; a background level of mold spores will remain in the air (roughly
equivalent to or lower than the level in outside air). These spores will not grow if the moisture
problem in the building has been resolved.
If you choose to use disinfectants or Biocides, always ventilate the area. Outdoor air may need
to be brought in with fans. When using fans, take care not to distribute mold spores throughout
an unaffected area. Biocides are toxic to humans, as well as mold. You should also use
appropriate PPE and read and follow label precautions. Never mix chlorine bleach solution
with cleaning solutions or detergents that contain ammonia; toxic fumes could be produced.
Some Biocides are considered pesticides, and some states require that only registered
pesticide applicators apply these products in schools. Make sure anyone applying a Biocides
is properly licensed, if necessary. Fungicides are commonly applied to outdoor plants, soil,
and grains as a dust or spray -examples include hexachlorobenzene, organomercurials,
pentachlorophenol, phtalimides, and dithiocarbamates. Do not use fungicides developed for
use outdoors for mold remediation or for any other indoor situation.
