Powersmart PS76417 Manuel D'instructions page 9

chemicals are:
Lead from lead-based paints,
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Crystalline silica from bricks and cement and other masonry products, and
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Arsenic and chromium from chemically-treated lumber.
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Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemical: work in a well ventilated area, and
work with approved safety equipment, such as those dust masks that are specially
designed to filter out microscopic particles.
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