PC-Based Respirator-Selector Program Source: 3M Occupational Health & Environmental Safety The 3M Select Software SS program is a CD-ROM that contains information on the manufacturer's wide line of respirator products... Choosing the right respirator for the many different workplace environments, and the hundreds of different chemicals that a worker might be exposed to, is a difficult task. Now, this procedure is simplified by the 3M Select Software SS program, a CD-ROM that contains information on the manufacturer's wide line of respirator products, as well as a menu-driven procedure for evaluating regulations, exposure limits and other factors. Use of the program provides an audit trail for decision logic. The program runs on the Microsoft Windows 3.1/95/NT/Workgroups operating systems.