The Churchill Pro

What’s In The PRO

British Military Grade Filter

The PRO mask uses a unique triple filter system.

The first layer of the filter system catches larger pollution particles such as dust and PM10. It’s then backed up by the Three-Ply Micro Particulate which stops nearly 100% of smaller particulate matter such as PM2.5 and PM0.3.

The inner filtration layer is made from 100% pure activated carbon cloth, originally developed by the UK Ministry of Defence for chemical, biological, and nuclear warfare protection.

The carbon filter is treated with silver to ensure 99% of harmful pathogens are removed and killed.

This multi layered  filter system means the Cambridge Mask performs better and lasts longer than other masks on the market.

Masks Performance Comparison

	Cambridge Mask PRO	Disposable Mask	Surgical Mask
Fashion friendly	✔	✘	✘
Suitable for children	✔	✘	✘
More environmentally friendly long-lasting mask	✔	✘	✘
Comes with box for safe and easy carrying	✔	✘	✘
Adjustable earloops	✔	✘	✘
Blocks over 99% of viruses and bacteria	✔	✘	✘
Filters gas pollutants such as Ozone and oxides	✔	✘	✘
Mask filter life	200-300 hours (3-6 months)	8-10 hours	8-10 hours
Cost per hour of use (USD)	$0.08c	$0.23c	$0.03c

Long Last Filter and Washable Mask

Independently Tested Filter

Our Cambridge Mask PRO meet a wide range of tests to ensure they are effective and safe to use for the whole family.

• 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)
• Particle Filtration Efficiency >98%

How to use the Headstrap and Nose Foam

The head strap clips to each ear loop then goes around the back of the head, reducing strain on the ears and tightening the mask on the nose and chin.

The nose foam can be stuck inside the nose section of your mask to increase comfort and prevent fogging up of glasses in colder weather.