The Cambridge Mask filters:

• Almost 100%of Particulate Matter (PM) including PM10, PM2.5 and PM0.3. These are the sort of particles you find in coal dust from power stations, diesel exhaust fumes, factory emissions, and from construction works.
• Almost 100%of gas based air pollution, including odours such as Volatile Organic Compounds (VOCs), Ozone, Benzathine, and Formaldehyde. These particulates you can find in petrol fumes, chemical emissions, and from many industrial processes.
• Almost 100%of harmful pathogens such as viruses and bacteria. 

Plus, other airborne irritants or allergens such as dust, mould spores, some odours, pet allergens and pollen.

If you have further question, please contact us by email to info@cambridgemask.com or Chat button on our sites to connect with our Customer Service Team