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If
the remediation job disturbs mold and mold spores become airborne,
then the risk of respiratory exposure goes up. Actions that are likely
to stir up mold include: breakup of moldy porous materials such as
wallboard; invasive procedures used to examine or remediate mold growth
in a wall cavity; actively stripping or peeling wallpaper to remove
it; and using fans to dry items. |
| Always
use gloves and eye protection when cleaning up mold! |
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The
primary function of Personal Protective Equipment (PPE) is to avoid
inhaling mold and mold spores and to avoid mold contact with the skin
or eyes. The following sections discuss the different types of PPE
that can be used during remediation activities. Please note that all
individuals using certain PPE equipment, such as half-face or full-face
respirators, must be trained, must have medical clearance, and must
be fit-tested by a trained professional. In addition, the use of respirators
must follow a complete respiratory protection program as specified
by the Occupational Safety and Health Administration (see Resources
List for more information). |
| Personal
Pretective Equipment |
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[Click
on image for larger picture]
Photo 7: Remediation worker with limited PPE |
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Skin
and Eye Protection
Gloves are required to protect
the skin from contact with mold allergens (and in some cases mold
toxins) and from potentially irritating cleaning solutions. Long
gloves that extend to the middle of the forearm are recommended.
The glove material should be selected based on the type of materials
being handled. If you are using a biocide (such as chlorine bleach)
or a strong cleaning solution, you should select gloves made from
natural rubber, neoprene, nitrile, polyurethane, or PVC. If you
are using a mild detergent or plain water, ordinary household rubber
gloves may be used. To protect your eyes, use properly fitted goggles
or a full-face respirator with HEPA filter. Goggles must be
designed to prevent the entry of dust and small particles. Safety
glasses or goggles with open vent holes are not acceptable.
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Respiratory
Protection
Respirators protect cleanup workers
from inhaling airborne mold, mold spores, and dust.
- Minimum: When cleaning up a
small area affected by mold, you should use an N-95 respirator.
This device covers the nose and mouth, will filter out 95% of the particulates
in the air, and is available in most hardware stores. In situations
where a full-face respirator is in use, additional eye protection is
not required.
- Limited: Limited PPE includes
use of a half-face or full-face air purifying respirator (APR) equipped
with a HEPA filter cartridge. These respirators contain both inhalation
and exhalation valves that filter the air and ensure that it is free
of mold particles. Note that half-face APRs do not provide eye protection.
In addition, the HEPA filters do not remove vapors or gases. You should
always use respirators approved by the National Institute for Occupational
Safety and Health (see
Resources List).
- Full: In situations in which
high levels of airborne dust or mold spores are likely or when intense
or long-term exposures are expected (e.g., the cleanup of large areas
of contamination), a full-face, powered air purifying respirator (PAPR)
is recommended. Full-face PAPRs use a blower to force air through a
HEPA filter. The HEPA-filtered air is supplied to a mask that covers
the entire face or a hood that covers the entire head. The positive
pressure within the hood prevents unfiltered air from entering through
penetrations or gaps. Individuals must be trained to use their respirators
before they begin remediation. The use of these respirators must be
in compliance with OSHA regulations (see
Resources List).
Disposable Protective Clothing
Disposable clothing is recommended
during a medium or large remediation project to prevent the transfer and
spread of mold to clothing and to eliminate skin contact with mold.
- Limited: Disposable paper overalls
can be used.
- Full: Mold-impervious disposable
head and foot coverings, and a body suit made of a breathable material,
such as TYVEKŪ, should be used. All gaps, such as those around ankles
and wrists, should be sealed (many remediators use duct tape to seal
clothing).
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