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Cleaning up Mould
There are two ways of cleaning up molds. The objective of both ways
is to prevent fine particles from being thrown back into the room.
The first is to vacuum mouldy materials or surfaces with a HEPA vacuum
or a central vacuum exhausted directly to the exterior (and not into the
garage). Vacuuming removes loose organic material, which will make the
cleaning safer and easier. Dust is stirred up, so respiratory protection
is important, and the space should be unoccupied. Vacuuming should precede
cleaning with other cleaning substances. Vacuuming is also the way to clean
most surfaces that cannot be washed; for example, upholstered furniture.
Upholstered furnishings that have been exposed to damp conditions over
a prolonged period cannot be cleaned; they should be re-upholstered or
preferably discarded.
The second is to use a solution of detergent (e.g., unscented dishwashing
liquid) and water, and rinse well. Bleach is no longer recommended for
a general mould cleanup as it was in the past (older publications
will recommend it). Bleach is now used only to clean mould off badly contaminated
wood surfaces. When using bleach, ventilation of the area and respiratory
protection are essential. Concrete surfaces can be cleaner=ed with tri-sodium
phosphate (TSP) and water. Prepare by adding one cup of TSP to 2 gallons
of warm water. Eye and skin protection is necessary.
When washing, the affected areas should not be saturated, and the space
should be well ventilated to speed drying of the cleaned surfaces.
SOLPLAN REVIEW
May 2001
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