SAN FRANCISCO (AP) — Apple is banning the use of two potentially hazardous chemicals during the final assembly of iPhones and iPads as part of the company’s latest commitment to protect the factory workers who build its trendy devices.

The decision announced Wednesday comes five months after the activist groups China Labor Watch and Green America launched a petition drive calling on Apple Inc. to abandon the use of benzene and n-hexane in the production of iPhones.