Check the listing for details. Full Facepiece Respirator 6000 Series, Reusable. Condition: New. Listed at 207.34 USD. " Reusable, lightweight full facepieces -respirators feature easy-to-adjust headstraps for maximum comfort. The Cool Flow exhalation valve is designed to make breathing easier and to help reduce heat and moisture buildup in the facepiece. -Reusable, lightweight -Cool Flow exhalation valve reduces heat and moisture buildup -Large lens is coated for scratch-resistance -NIOSH approved for negative pressure air purifying and positive pressure dual-airline applications The center adapter directs exhaled breath and moisture downward NIOSH approved for negative pressure air purifying and positive pressure dual airline applications. Large lens is coated for scratch-resistance and provides excellent visibility. No retainers or extra parts are required to attach filter, cartridges, or dual airline. Respirators are also available with a DIN port adapter. All 3M products must be used in accordance with OSHA regulations and the user instructions, warnings, and limitations accompanying each product."Full Facepiece RespiratorsMedium