​This free app from 3M allows industrial hygienists and safety professionals to quickly access answers to frequently asked respiratory questions; check the 3M respirator selection guide; identify 3M facepieces, cartridges and filters; walk through an overview of qualitative fit-testing protocols; and conduct fit tests. The respiratory app is available for iOS devices and is slated to be available for Android-enabled mobile devices in December 2012.

Apple App Store