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Dust and Silica Warning
Grinding/cutting/drilling of masonry, concrete, metal and other materials can generate dust,
mists and fumes containing chemicals known to cause serious or fatal injury or illness, such as
respiratory disease, cancer, birth defects or other reproductive harm. If you are unfamiliar with
the risks associated with the particular process and/or material being cut or the composition of
the tool being used, review the material safety data sheet and/or consult your employer, the
material manufacturer/supplier, governmental agencies such as OSHA and NIOSH and other
sources on hazardous materials and make certain to comply with all product warnings and
instructions for the safe and effective use of the material being cut. California and some other
authorities, for instance, have published lists of substances known to cause cancer,
reproductive toxicity, or other harmful effects.
Control dust, mist and fumes at the source where possible. In this regard use good work
practices and follow the recommendations of the manufacturer/supplier, OSHA/NIOSH, and
occupational and trade associations. Water should be used for dust suppression when wet
cutting is feasible. When the hazards from inhalation of dust, mists and fumes cannot be
eliminated through engineering controls such as either vacuum and/or water mist, the operator
and any bystanders should always wear a respirator approved by NIOSH/MSHA for the
material being cut.
California Proposition 65 Message
Some dust created by power sanding, sawing, grinding, drilling, and other construction
activities contain chemicals known (to the State of California) to cause cancer, birth defects or
other reproductive harm. Some examples of these chemicals are:
• Lead, from lead-based paints
• Crystalline silica, from bricks and cement and other masonry products
• Arsenic and chromium, from chemically treated lumber
For Addition Information Consult The Following Sources:
http://www.osha.gov/dsg/topics/silicacrystalline/index.html
http://www.cdc.gov/niosh/consilic.html
http://oehha.ca.gov/prop65/law/P65law72003.html
http://www.dir.ca.gov/Title8/sub4.html
Use Approved:
Eye Protection
Hearing
Respiratory
Head Protection
Protection
Protection
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