Filtration & Certification
Silver Treatment & how it is used in the mask?
We use a process called silver impregnation in our Cambridge Masks.
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What is British Military Filter Technology?
Never heard of British Military Filter Technology? Learn more here and how it is used in our masks.
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What does the mask filter?
Understanding Particulate Matter and our Filtration Technology.
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Has the mask been independently tested?
Our Cambridge Masks meet a wide range of tests to ensure they are effective and safe to use for the whole family.
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What is Viral Filtration Efficiency?
The Viral Filtration Efficiency (VFE) test calculates the percentage of viral material that is blocked by the mask.
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What is Bioburden?
Bioburden is the term for the number of bacteria living on a surface that has not been sterilised.
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What is Latex Particle Challenge?
The Latex Particle Challenge tests the Particle Filtration Efficiency (PFE), which is the mask’s ability to keep out dust, pollutants and other no...
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What is Inhalation and Exhalation Resistance?
Inhalation and exhalation resistance represents how difficult it is to breath in and out while wearing the mask.
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Children’s Product Certificate
This certificate is given to products that have been thoroughly tested for a variety of mechanical and physical properties and are deemed safe for ...
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What is BFE and Delta P?
Learn more about BFE and Delta P here.
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The Admiral - Pro Mask
£5.50
£24.95
The Churchill - Pro Mask
£7.50
£24.95
The Ada - Pro Mask
£17.50
£24.95
The James - Pro Mask
£17.50
£24.95
The Lindley - Pro Mask
£17.50
£24.95
The Marmalade - Pro Mask
£17.50
£24.95