FAQ

Filtration & Certification

Silver Treatment & how it is used in the mask?

The Cambridge Masks utilize a process called silver impregnation to enhance their filtering capabilities.

Filtration & Certification

What is British Military Filter Technology?

Never heard of British Military Filter Technology? Learn more here and how it is used in our masks.

Filtration & Certification

What does the mask filter?

Understanding Particulate Matter and our Filtration Technology.

Filtration & Certification

Has the mask been independently tested?

We are pleased to let you know that the Cambridge Masks have passed a wide range of tests. We do this to ensure that the masks we distribute are ef...

Filtration & Certification

What is Viral Filtration Efficiency?

Viral Filtration Efficiency (VFE) measures the percentage of viral particles that a mask can block. Learn more about this here.

Filtration & Certification

What is Bioburden?

Bioburden refers to the number of bacteria present on a surface that hasn't been sterilized.

Filtration & Certification

What is Latex Particle Challenge?

The Latex Particle Challenge tests the Particle Filtration Efficiency (PFE) of a mask, which measures its ability to filter out dust, pollutants, ...

Filtration & Certification

What is Inhalation and Exhalation Resistance?

Understanding Inhalation and Exhalation Resistance in our masks.

Filtration & Certification

Children’s Product Certificate

This certification is given to products that have undergone extensive testing for various mechanical and physical properties, ensuring they are saf...

Filtration & Certification