FAQ

Silver Treatment & how it is used in the mask?

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

What is British Military Filter Technology?

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

What does the mask filter?

Understanding Particulate Matter and our Filtration Technology.

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 effective and safe to use for you and your loved ones. 

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. 

What is Bioburden?

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

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, and other non-viable particles from the air.

What is Inhalation and Exhalation Resistance?

Understanding Inhalation and Exhalation Resistance in our masks.

Children’s Product Certificate

This certification is given to products that have undergone extensive testing for various mechanical and physical properties, ensuring they are safe for children over 3 years old.

What is BFE and Delta P?

Understanding Bacterial Filtration Efficiency (BFE) and Mask Breathability.