The NIOSH Mobile Pocket Guide is a valuable tool for workers, employers, and occupational health professionals in need of general industrial hygiene information. Developed by the Centers for Disease Control and Prevention, this free iPhone app provides a wealth of data on 677 chemicals or substance groupings commonly found in the work environment.

With its user-friendly interface, the NIOSH Mobile Pocket Guide presents key information in an abbreviated tabular form. Users can easily search for chemicals by name, synonym, DOT number, CAS number, or RTECS number. The app also includes links to IDLH (immediately dangerous to life or health) values, as well as NIOSH and OSHA methods (requires a data connection).

One of the standout features of the app is the ability to customize the information displayed based on user preferences. Users can bookmark commonly used chemicals for quick access and view a chronological history of previously viewed chemicals. Additionally, the app allows for easy sharing of information by dragging and dropping chemical entries to other apps (available on iPad version with iOS 11 and above).

Overall, the NIOSH Mobile Pocket Guide is a comprehensive resource that provides essential information for recognizing and controlling occupational chemical hazards. Its intuitive interface and extensive database make it a valuable tool in the field of industrial hygiene.