Specification

PRO MASK SPECIFICATION SHEET
APPROVALS AND STANDARDS
Certified as child safe under 14 U.S.C 1278a and CFR
Parts 1370 1501 1500.53 and 1500.44 (Certified by
Bay Area Testing Labs)
EN149 standards for CE in the European Union
(Certified by SAI Global and Apave Labs FR)
99.6% viral filtration efficiency and 99.7% bacterial
filtration efficiency (tested by Nelson Labs USA)
DISTRIBUTIONS & CUSTOMISATIONS
With distributors across North and South-East, Europe,
US, Australia, and Canada, Cambridge Mask Co. can
meet international shipping needs all around the world.
We retail our mask in over 100 countries globally. Our
masks are used globally by travelers, cyclists, urban
residents, respiratory disease sufferers, and anyone
wanting to reduce their exposure to potentially harmful
pollutants. In the past, we have customised for Deliveroo,
British Airways, Ferrari, The Lash Exchange and Fly
Aware.
Wood Pulp Paper
*EPA establishes an AQI for five major air pollutants regulated by the Clean Air Act.
Use the Air Quality Index (AQI) to learn more about your local air quality and the best times
for your outdoor activities.
USAGE GUIDELINES
Pollution Level
Air Quality
Conditions (AQI)
Replace AfterDescription
Good
Below 50 Clear visibility to horizon
Moderate/
Unhealthy for
Sensitive Groups
51-150 Cannot sea pollution with
the naked eye,
slight haze on the horizon
Mask not needed
340 hours
Unhealthy /
Very Unhealthy
151-300 Haze at 2-3 km visibility
220 hours
Hazardous
301-500 Clouds of pollution,
visibility around 1km
180 hours
Beyond Index
Over 500 Visibility below 600 meters.
Fog-like clouds of pollution
clearly visible even
in bright sunlight.
90 hours
Cambridge Masks™ PRO are non-disposable and can be
used up to 340 hours. The length of time they are suitable
for depends on how polluted the environment is when
you use it. A table is provided below.
IMPORTANT NOTES
Mask must be fitted properly to filter effectively.
Infants and children should be supervised when
wearing a mask.
Mask do not filter industrial chemicals or oil-based
particles such as paint.
Do not exceed recommended maximum hours of
usage.
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STORAGE & SHELF LIFE
Keep your mask sealed in a cool, dry place with low
humidity (-20°C to +30°C)
The mask age once you actively wear the mask.
The Cambridge Mask PRO can be gently hand washed
with soap and warm water to remove dirt from the outer
fabric layer. Once clean, hang the mask up to air dry.
The mask is intended to provide protection of the
wearer’s respiratory system from airborne substances
and mixtures which are hazardous to health. The mask
is intended as a lifestyle product for use by the general
public. It is not intended for professional, industrial or
other occupations.
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THE DIFFERENCES BETWEEN
PRO & BASIC MASKS
Filter Pollution, Gases,
and Bacteria and Viruses
CAMBRIDGE MASK BASIC CAMBRIDGE MASK PRO
Suitable for Children
Adjustable Toggles
5 Sizes of Options
Inner Carbon Layer
Vary of Patterns and
Colours
Comes with Headstrap
& Nose Foam
Packaging
Weight
Filter Life
Sealed Plastic Bag
70 grams 166 grams
70-90 hours 200-350 hours
Tin Box & Eco-Friendly
Packaging
Cambridge Mask Co. produce two different types of
masks – the BASIC and the PRO with the details
comparison below: