Differences in filtration between the Pro & Non-Valve masks
Both the PRO and Non-valve masks have the same level of protection and efficiency. They have the same filtration technology with the main difference being only the one-way exhalation valve.
Our renowned filter technology allow the masks to filter up to 99.6% of viruses and 99.7% of bacterias. The masks also effectively filter out an array of air pollutants such as smoke, diesel fumes, PM2.5/PM10/PM0.3, etc. also gas-based pollution such as benzene and petrol/gasoline exhaust.
If you have further questions, please contact us by email at info@cambridgemask.com or Chat button on our sites to connect with our Customer Service Team.