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BLS 421 Universal filter A2P3 R

This universal filter RD40 is suitable for the reusable full face mask class 3. Because this is a universal filter, we are happy to share with you that it can also be used with other respiratory protection masks.

This filter protects you against:

  • Organic gases
  • Vapors with a boiling point above> 65 °C
  • Particles, mists and vapors

The quality of the activated carbon that BLS uses for the filtration of gases and vapors meets the high safety standards and guarantees excellent filter performance.
They are produced without toxic additives such as Hexavalent Chromium (Cr VI) and certified for the food industry (REGVE231/2017).


  • Universal RD40 connector
  • Packed per 4 pieces
  • In accordance with EN 148-1

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