PressToCheck™ is the easiest way to face-fit check the seal of your respirator, every time you put it on! The range features HEPA filtration exceeding 99.95%, low profile design maximising compatibility and low breathing resistance across the range. F-4123 A2P3 organic gas / vapour + dust replacement encapsulated filters, featuring PressToCheck™ technology for daily face-fit reassurance. Protects against resins, chemicals, solid and liquid aerosols.