American Industrial Hygiene Association

NOTICE OF SCHEDULED OUTAGE OF AIHA NETWORK: Due to scheduled maintenance to the AIHA system network, AIHA's website, e-mail, phones, and voicemail will be affected between 6:30 p.m. ET, Thursday, August 6 until 5:00 a.m. ET, Friday, August 7. Any communications sent to AIHA during the scheduled maintenance window may result in brief delay in delivery. If there are any questions or concerns in advance, please contact Customer Service at: (703) 849-8888.  We apologize for any inconvenience this may cause and thank you in advance for your patience.


 Content Editor ‭[3]‬

China-US Symposia

​Notice: To locate an accredited testing laboratory or for general information about laboratory accreditation, please go to the AIHA Laboratory Accreditation Programs, LLC site at For more information on formaldehyde, visit the AIHA Formaldehyde Resource Center.

 Featured Video


AIHA is proud to be a partner of the 2015 EHS Management Forum, hosted by the National Association for Environmental Management (NAEM).


IH Calc​ulator Lite

Get IH Calculator LITE from the Apple Store - FREE!