Can I remove the valve from the mask?

Please do not remove it. Removing the valve will impact the performance of the Cambridge Mask.

Please note that the valve plays a vital role in helping to reduce moisture preventing the build-up and growth of viruses and bacteria, in addition to preventing excess build-up of carbon dioxide.

We do not recommend valve removal, as it is also a key part of the EN149 certification that our masks have gone through under European Union testing and regulation.

If you have further questions, please contact us by email at or Chat button on our sites to connect with our Customer Service Team.