Ergonet supports the mask structure and keeps the filter media clean, Internal foam gasket ensures a tight face seal, Soft nose bridge for a secure and comfortable fit, Wide adjustable head straps for ultimate wearer comfort, 100% metal free, High performance exhalation valve to reduce heat and provide comfort when used in hot and humid conditions, Dolomite optional clogging test (D) to provide more comfortable breathing and longer lasting filtration performance, Retail box which aids presentation for retail sales, CE certified
