This is a pair of Cartridges to suit our Half and Full Face  Respiratory Masks
They are specifically for protecting you against Organic Acid Vapour or Acid Gas - Perfect for Vaporising Oxalic Acid or using with Formic Acid

The service life of any acid gas cartridge filter is affected by many factors.

Replace both the filters: -

• When the expiry date stamped on the sealed packet has elapsed.
• Once opened, maximum use time is 6 months (even if not used). The carbon will absorb contaminants from the general environment.
• When contaminant can be detected by smell or taste.

Meet standards and approvals AS/NZS 1716:2012