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Use of respiratory equipment is recommended. Eye Protection The brass crown sufficiently screens off direct ultra-violet rays, so protective eyewear with lenses and side shields shade A6 is sufficient protection. This also applies when cutting with the torch directly on the work. When preparing weld edges and gouging the eyes are directly exposed to ultra-violet rays. For this type of work wearing a welding helmet with lenses shade A9 is strongly recommended. 12 Fire Prevention Hot slag or