NMC biohazard sign with graphics. Legend "IN CASE OF FIRE DO NOT USE ELEVATOR USE STAIRS". Aluminum 0.040 has baked enamel finish on both sides. This allows your sign to be printed on both sides. it is weatherproof and non-corrosive. Employers are required to post biohazard warning signs and labels at the entrances to these hazardous areas. In addition, all biohazard material must be properly labeled to warn employees of the potential risk to their health. Perfect for indoor and outdoor use. Good chemical resistant. Maximum temperature: 150 degree F. OSHA Compliant. Measures 14-inches length by 10-inches height.