This Honeywell North 5500 Series Half Mask Respirator provides a protected, cost-effective solution for breathing safety without compromising on features. It delivers strong protection against particulates, dusts, fumes, mists, organic vapors, acid gases & other contaminants, and is compatible with all of our N-Series cartridge types to be used in a couple of applications. Along with functioning as an air purifying respirator (APR), the 5500 model can easily transition to a powered air purifying respirator (PAPR) or a continuous drift supplied air respirator (CF-SAR). It’s also compatible with a backpack adaptor to be used in welding and painting applications (all attachments sold one at a time). The elastomeric face seal is contoured to highest fit different facial areas, and the threaded cartridge connectors prevent accidental disconnection. The upper strap features minimum give for strong beef up through extended wear at the job.