| http://www.w3.org/ns/prov#value | - Don???t wear a surgical mask: the dust will go right through it and the vapors will saturate the mask, making your breathing zone more hazardous.Windows: Open windows are an improvement over a closed salon environment; however, so much of the effectiveness of window ventilation depends on which way the wind is blowing (i.e. into or out of your face) that it???s too unreliable.
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