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The American Industrial Hygiene Conference and Expo is the “must attend” event for thousands of industrial hygiene and occupational and environmental health and safety professionals. Come and see why professionals have to come to rely on AIHce as their source for professional development and networking for over 75 years. Engaging general sessions, innovative technical sessions, comprehensive professional development courses and a bustling Expo allow you to refresh your skills and earn up to 8.51 certification maintenance points.