Stanley Personal Protection Freedom Disposable Half Mask Respirator is built for the most hazardous of airborne irritants, irritants that would be impossible to clean out from a standard respirator. These efficient lab safety masks are well-suited for use while spraying pesticides, using spray paint, welding, working with textiles, chemical operations, and automotive repair and detail jobs. Stanley Personal Protection has done all the hard work for you with the Stanley Personal Protection Freedom Respirator; the respirator is pre-assembled with all the cartridges and filters in place and ready to go. This way, you don't have to worry about the respirator not working fully because you didn't put it together right. These Stanley Personal Protection safety masks come equipped with a broad sealing flange, a chin port, rolled edges, and forward angled nose piece for the utmost of comfort, allowing you to work all day in perfect freedom while wearing the mask. Liberate yourself from hazardous air by wearing the Stanley Personal Protection Freedom Pre-Assembled Half Mask Respirator.