Features:_x000D_ _x000D_ - This series combines comfort and convenience_x000D_ - Comfortable soft, lightweight facepiece with easy-to-adjust head straps_x000D_ - NIOSH approved for negative pressure air purifying and supplied air dual airline applications_x000D_ - Can be disassembled, cleaned and reused_x000D_ - Replaceable cartridges and filters allow reuse of facepiece for cost savings_x000D_ - Sizes are color coded for easy identification_x000D_ - For workplace/occupational use only