-proof flashlights are designed to be used in a “Hazardous Location,”. A “Hazardous Location,” defined as places where fire or explosion hazards may exist due to flammable gases, flammable liquid–produced vapors, combustible liquid–produced vapors, combustible dusts, or ignitable fibers/flyings present in the air in quantities sufficient to produce explosive or ignitable mixtures. Besides, safety flashlight help employees for emergency situation and keeping them safe on the job.