Aearo Technologies and other 3M subsidiaries voluntarily initiated debt settlement proceedings under Chapter 11 of the U.S. Bankruptcy Code. The companies have received more than 200,000 claims because of the quality of Combat Arms earplugs, masks and respirators manufactured by Aearo Technologies. To address these claims in Chapter 11 proceedings, 3M has allocated $1 billion, as well as another $240 to fund legal expenses.