<p>Bauer filter cartridges exceed the European Standards EN 12021 for breathing air purification. By keeping as a spare on board you can quickly replace in case of an emergency. Available in vacuum packed aluminium packaging which guarantees 2 year shelf life.</p> <p>FEATURES</p> <ul> <li>Contains activated carbon, hopcalite and molecular sieve</li> <li>Easy to handle and replace</li> <li>This filter maintains the high quality of your breathing air</li> <li>It is a quick replacement when your B Timer filter status activate</li> </ul>