FAQ

How often do I need to change the filter?

Great news! There's no need to change the filter, as the entire mask acts as the filter.    

How long can the mask be used for?

Cambridge Masks are reusable and offer up to 340 hours of use for the PRO and Non-valve masks and 90 hours for the BASIC mask.  

Can I remove the valve from the mask?

We do not recommend removing the mask's valve, as this will affect the functionality and performance of your Cambridge Mask.