American Industrial Hygiene Association

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​The AIHA office will be closed for the Memorial Day holiday on Monday, May 30, reopening on Tuesday, May 31. Online resources, including the marketplace and Member Center, will remain available. Any orders placed May 30–31 will be fulfilled when the AIHA office reopens on May 31.​


 Featured Video


Take control of your AIHce experience with tips from local IH/OH professionals on the best attractions at this year's location — the beautiful Inner Harbor in Baltimore, MD!


IH Calc​ulator Lite

Get IH Calculator LITE from the Apple Store - FREE!