AIHA is the association for scientists and professionals committed to preserving and ensuring occupational and environmental health and safety (OEHS) in the workplace and community.

AIHA is the association for scientists and professionals committed to preserving and ensuring occupational and environmental health and safety (OEHS) in the workplace and community.

An AIHA Membership provides peer connections, community, access to information and research, career opportunities and assistance, and more.

Thank you for using the AIHA Industrial Hygiene Calculator app! Credits: This app was developed using many of the calculations found on the Board for Global EHS Credentialing® CIH Equation Sheets and the ACGIH© TLVs® and BEIs® and Industrial Ventilation: A Manual of Recommended Practice for Design.

The Events Calendar on AIHA.org lists educational courses, meetings, and events of interest to industrial hygienists and OEHS professionals.

Most recent AIHA® ERPG and WEEL Handbook PDF Publication; AIHA®'s The Occupational Environment: Its Evaluation, Control, and Management PDF Publication; NIOSH Pocket Guide to Chemical Hazards online access; Interactive workshops and question and answer sessions

AIHA University is the go-to resource for cutting-edge education and training for current and aspiring industrial hygiene and OEHS professionals. The AIHA University Online Classroom is where you may access your online courses, webinars and OnDemand session recordings.

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Catalyst is AIHA's exclusive online community where you can network, talk to experts, join a conversation with people who share our interests, and find what you need throughout your journey with AIHA. Learn, share ideas, and be heard on Catalyst now!

The Guideline Foundation oversees the development of community exposure guidelines and oversight of AIHA's part in consensus-based standards development.