3MR8240 / 8240 RESPIRATOR DISPOSABLE R95 20EA/BX 3M™ Particulate Respirator 8240, R95 Use with grinding, sanding, sweeping and other dusty or oily operations. Because the 8240, R95 is comfortable to wear and easy to use, workers are quick to accept and use maintenance-free respirators. The 8240 features a collapse resistant shell for increased durability and reliability in most hot, humid conditions. Made in USA. Sold per box.