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Archive for August, 2020

Cambridge Masks filter air through three different layers . . .

Cambridge Mask Face Mask

1. The Primary Filter Layer

The first layer of our mask filters out larger particles such as dust and PM10. The material is sublimation printed in different patterns to make the masks fashion friendly.

Cambridge Masks

2. The Three-Ply Micro Particulate Layer

The second layer of the mask blocks particulates such as PM2.5. It also filters 99.79%+ of particles as small as PM0.3. The textile is a three-ply non-woven melt-blow polypropylene, a thermoplastic polymer used in a range of applications.

The blow moulding process begins with melting down the polymer and forming it into a “parison” – a ball of liquid. High velocity air is then passed through to attenuate the filaments and create a fibrous web. The random fibre orientation this triggers is advantageous because it creates a better mesh to trap particles. The textile is also created with a high surface area, meaning a greater percentage of particulates are captured as they pass through the filter.

Cambridge Mask

3. Military Grade Carbon Filter

The Cambridge Mask Pro is completed with the inner filter which is made from a 100% pure activated carbon cloth, which was originally invented by the UK Ministry of Defence. It was then extensively developed and made into a product for use in chemical, biological and nuclear warfare protection, of the type used by armed forces around the world. We hold the exclusive global rights for this material for use in a consumer pollution mask. You won’t find it in any other mask outside of the military.

All activated carbons – traditionally powders and granules – generate “Van der Waal” forces due to their porous structure. These forces give activated carbons their unique potential to adsorb gaseous molecules, including anions and cations into their internal pores.

Cambridge Mask

Our filter material is comprised of a series of activated carbon filaments, each about 2,000 nanometres in diameter. Each filament is many times smaller than the typical grain size in standard carbon materials, making the rate of adsorption of pollutant gas much faster and therefore more powerful. It also means that bacteria and viruses are drawn to the filament surface much more efficiently, because there is so much more available surface than in a granular carbon.

The high number of filaments – spun into a yarn and then woven into cloth – makes the speed of adsorption extremely fast in a material that is still easy to breathe through. Not only are molecules such as pollutant gases and endotoxins quickly adsorbed into the pores from a much wider area, but the Van der Waals forces also attract and immobilize on the filament surface much larger particles including bacteria, which often have a negatively charged membrane. Together with the anti-bacterial silver added to the filament surface, the activated carbon cloth traps the bacteria and draws out the gel-like cytoplasm inside – killing it and preventing infection.

Cambridge Masks are therefore powerful respirators that not only clear the air of pollution via the particulate filter, but also remove potentially harmful gases and pathogens with the additional carbon filter.

Cambridge Face Mask

VIEW CAMBRIDGE MASKS

Cambridge Mask face Mask

Cambridge Mask Face Mask

What products do you have?

We currently have the PRO Cambridge Mask, which is available in 5 sizes to fit children and adults. We also provide a head-strap and nose foam to help the masks fit better.
The PRO Cambridge Mask is made by combining 3 unique layers; the outer printed layer, the three-ply particulate filter, and an activated carbon cloth which is tested British Military Filtration Technology and filters almost 100% of pollution, gases, 99.6% of viruses and 99.7% of bacteria. The PRO mask is also treated with silver to protect the wearer against bacteria and viruses. PRO masks have a  lifespan of up to 340 hours of use.

Cambridge Mask Face Mask

 

How long can the mask be used for?

Cambridge Masks are non-disposable and can be used up to 340 hours. The length of time is affected by the level of pollution/dust. A table is provided below:

Cambridge Mask Face Mask

Please note that the mask can be hand washed with soap and hot water. However, this will not extend the life of the filters as the pollution will be locked into them. The mask will need replacing after extended use to ensure proper filtration

What does the valve do?

The valve works by opening when you exhale and closing when you inhale. The easiest way to see this in operation would be to look in the mirror and observe it opening and closing as you breathe.

We have made improvements to the valve to adjust the thickness of the inner membrane. This makes it easier for the valve to open and close at the exact time you are exhaling and inhaling.

 

Filter Technology – What does the Mask Filter?

Almost 100% of Particulate Matter (PM) including PM10, PM2.5 and PM0.3. These are the sort of particles you find in coal dust from power stations, diesel exhaust fumes, factory emissions, and from construction works.

• Almost 100% of gas based air pollution, including odours such as Volatile Organic Compounds (VOCs), Ozone, Benzathine, and Formaldehyde. These particulates you can find in petrol fumes, chemical emissions, and from many industrial processes.

• Almost 100% of harmful pathogens such as viruses and bacteria. 

• Other airborne irritants or allergens such as dust, mould spores, some odours, pet allergens and pollen.

 

Who is the Mask for?

• Anyone exposed to Viruses. Viruses usually travel on droplets of water, which are very large. The mask will block these particles. The Cambridge Mask PRO filters are treated with silver, which works to enhance the anti-viral properties of the technology.

• Anyone seeking protection for airborne irritants such as dust and mould

• People in at risk groups for respiratory disease, including children, elderly, pregnant women and those with existing respiratory conditions.

 Asthmatics and allergy sufferers including Hay Fever. 

 Hobbyists and DIY such as woodworking and sanding.

• Anyone exposed to urban environments with high air pollution levels – any big city often has higher air pollution.

 

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