Cambridge mask

The Cambridge Mask is not suitable for use in hospital settings by members of health care teams as it is not a single-use item. Unlike disposable medical masks, you would not want to dispose of a Cambridge Mask after just one use, which makes our masks unsuitable for contact with infectious patients. The hospital you work in will have an infection control policy, which must be adhered to when dealing with infectious patients.

A Cambridge Mask could be worn to reduce your risk of respiratory infections when you are not at work in a medical environment. For example, if worn when in public settings or around others with respiratory infections. Other measures that can also be helpful include maintaining a good level of hand hygiene, avoiding crowded areas, and keeping your distance from others (airborne transmission of respiratory pathogens is reduced significantly over a distance of greater than 2m).

Yes, as explained below by the Cambridge Mask Filter Material Testing results:

Our Masks pass the >99% requirement set for the European classification EN 149 and the US classification 42 CFR 84, for the solid aerosol tests.

Due to the further prerequisite of EN 149 in regards to liquid aerosol test, our masks receive a mean of PFE of 97%.

The Cambridge Mask test results: 
Particle Filtration Efficiency   >98%
Breathing resistance   <2 mbar
Bacterial Filtration Efficiency   >99%
Viral Filtration Efficiency    >99%

Mask Fit and In-use PFE: 
The EN 149 also requires a series of activities conducted by individuals to test the mask fit and in-use PFE – whereas the 42 CFR 84, only requires for it to not interfere with common industrial safety corrective spectacles.

The Cambridge Mask PRO is tested to filter 99.6% of viruses and bacteria.

Viruses usually travel on droplets of water, which are very large. The mask will block these particles.

Cambridge Mask PRO filters are treated with silver, which works to enhance the anti-viral properties of the technology.

You can read the USA Centers for Disease Control and Prevention guidelines on Coronavirus here:

“It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes, but this is not thought to be the main way the virus spreads.

The Cambridge Masks™ 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. The mask will need replacing after extended use to ensure proper filtration.

A table is provided below.

Pollution LevelAir Quality Condition (AQI)DescriptionReplace after
GoodBelow 50Clear visibility to horizonMask not needed
Moderate/Unhealthy for Sensitive Groups51 – 150Cannot see pollution with the naked eye, slight haz on horizon340 hours
Unhealthy/Very Unhealthy151 – 300Haze at 2-3km visibility220 hours
Hazardous301 – 500Clouds of pollution, visibility around 1km180 hours
Beyond IndexAbove 500Visibility below 600 meters. Fog-like clouds of Pollution clearly visible even in bright sunlight90 hours


Good news! You don’t need to change the filter because the whole mask is the filter. To provide the best seal possible we have sewn the filter directly into the mask.

This does not mean the mask will expire faster either, as they are made to last 3-6 months, please check our usage table above to learn about the guidelines.

We do not  offer masks for babies under 1.5 years due to the risk of choking and because younger babies’ lungs aren’t yet able to overcome resistance when drawing air properly through our filter materials.

The extra small size is indeed very small, and optimally designed for toddlers or tiny children. The adjustable apparatus is too big to fit on the XS mask, therefore we do not produce adjustable XS masks at this time. You may also notice the XS size does not come with a valve for the same reason. This does not usually create any issues as smaller children do not need to exhale as much air as adults.

  • 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.

Cambridge Mask use a triple-layer filtration system which will protect from a range of airborne contaminants.

Test Performance:

  • 99.60 % average filtration of viruses
  • 99.77 % average filtration of bacteria
  • 99.70 % average particulate filtration down to 0.3 microns

Our Cambridge Masks 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
  • ✔ 99.6% viral filtration efficiency and 99.7% bacterial filtration efficiency (tested by Nelson Labs USA)
  • ✔ Particle Filtration Efficiency > 98%


  • Anyone exposed to urban environments with high air pollution levels – any big city often has higher air pollution. You can find a number of apps and websites to tell you the air quality in your area.
  • People in at-risk groups for respiratory diseases, including children, elderly people, pregnant women and those with existing respiratory conditions.
  • Asthmatics and allergy sufferers including Hay Fever. 
  • Hobbyists and DIY such as woodworking and sanding.
  • Anyone travelling to regions known for poor air quality such as China and India.
  • Anyone seeking protection for airborne irritants such as dust and mould.

Cambridge Mask Co. was founded by Christopher Dobbing after he moved to China in 2012. Upon seeing young children badly affected by air pollution issues, he developed a mask to help young people access a quality product that could keep them safe.

Today, Cambridge Mask Co. is a global leader in the consumer mask market for adults and children, and sells to organizations such as US Embassies, major airlines, schools and hospitals around the world.

The company has had a China footprint since it was founded, and many British and international members of the team speak fluent Mandarin.

Like Apple and many of the world’s leading consumer goods companies, Cambridge Mask Co. found that China offers the best opportunity to manufacture a high-quality product in volume, at a price that makes it accessible to as many people as possible.

Cambridge Mask Co. factory is regularly audited to comply with US and EU Government standards and our masks go through a rigorous quality management system during the production process.

The filters used in all of Cambridge Mask are made in the UK and the masks are then assembled and packed in China as is clear on  packaging.

Cambridge Mask Co. production facilities meet the following international standards:

ISO 9001:2008

ISO 13485:2003

Cambridge Mask are fully CE Certified and have passed all of the necessary standards to demonstrate efficiency.

Cambridge Mask Co was founded to help everyone everywhere get outside and enjoy life, without having to worry about what they breathe or the way they look.

Cambridge Mask has a valve that plays a vital role to prevent the buildup of carbon dioxide which can help you to breathe easily. In addition, the valve will help reduce the moisture, which will prevent the buildup and growth of viruses and bacteria.

Cambridge Masks are designed perfectly to fit your face, it will cover the nose down to the chin. No need to worry as you will still be able to breathe normally.

Please note that Cambridge Mask is not intended for use in industrial settings and should not be used to filter chemicals or solvents in a workplace. Please consult a personal protective equipment specialist for information on workplace use of masks.

Our masks pass through a number of quality control checks to ensure and maintain the highest manufacturing standards before we ship it to your address.

Washing the mask before first use is not required. We recommend washing your mask only when necessary as excessive washing will affect the functionality of the filter.

The Cambridge 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. As the whole mask is the filter, once it has reached its recommended total hours of use, a new mask is needed. Please do not machine wash or dry the mask.

We recommend you wash your mask only when necessary to clean excess dirt off the outer and inner surfaces. Washing the mask excessively may affect the filter performance.

User Manual Guide

The User Manual Guide is designed for both new and experienced Cambridge Mask customers. You will find important information about usage guidelines, and step-by-step instructions on how to fit your mask. If you are pre-order masks from us and you have not, download the User Manual Guide, you may refer to this link for download it.


Airofit is a respiratory training system that improves athletes’ performance through tested breathing exercises. Whether you’re running, cycling, swimming or simply want overall better wellbeing; an improved respiratory system will benefit you. The best part – it will only take 10 minutes a day as Airofit is designed to be used separately from other physical activity.

The Airofit Breathing Trainer contains resistance wheels that provide adjustable restricted airflow. This resistance causes fatigue in your breathing muscles which is then compensated by muscle tissue growth, making your respiratory muscles stronger, faster and more efficient.

Airofit pairs with your smartphone, which gives you live feedback, guidance and the ability to track your progress. The mobile app consists of various training programs that target different areas of your breathing like Respiratory strength, Vital capacity, and Anaerobic threshold.

Airofit is designed to be used separately from any other physical activity. This means that you can use Airofit in any free moment – before bed, at work, after a gym session or whatever suits you best.

Training is done with your smartphone in front of you, as the app will guide you through every exercise via live feedback and data visualization.

Airofit is the first and only truly smart breathing trainer on the market. We know that one size does not fit all, therefore all Airofit training programs are tailored to YOU – we take into consideration your age, size, gender, and preference. Airofit also measures your vital lung capacity and breathing muscle strength. We take all that data as a baseline for your training and enable you to start and progress through your training correctly.

Airofit is also the only breathing trainer that goes beyond simple respiratory muscle training (RMT). We also address other aspects of breathing, like Respiratory strength, Vital capacity, Anaerobic threshold, and relaxation. We ensure that you can train harder, recover faster and most importantly – perform better.

Airofit is based on countless research within the respiratory training area. 

Airofit has also been tested by an international Medtech company AMBU. After testing Airofit on 68 healthy individuals, the group training on the highest resistance settings showed an average performance improvement of 15% in a standard Cooper running test.

See full research here.

We offer our users a 45-day satisfaction guarantee during which you can test Airofit and see the results for yourself. If you don’t like it or you don’t believe in future improvements, we will happily handle the return process and refund you fully.

The price includes an Airofit Breathing Trainer and the mobile application with all future updates, which consists of training programs and sessions developed by experts. There are no hidden or additional monthly costs!

Airofit packaging also includes a quick guide and a charging cable.

When developed by AMBU, Airofit was originally designed as an asthma and COPD aid. Respiratory training is known to help with asthma symptoms.

In asthmatics, variety in tidal volumes is very common – their breathing muscles are working far from the optimal capacity. This makes them inactive and results in dyspnea/shortness of breath. This becomes most obvious during exercise, so you waste even more energy on breathing alone.

We are working with several asthmatics and their feedback is great – from easier asthma medication inhalation to lack of symptoms altogether. However, there are many different types and degrees of Asthma, so we strongly recommend you first consult with your doctor about respiratory training.

There is no age limitation to using Airofit. However, the mobile app does not let you register if you are under 13. This is because your results are measured compared to an average of an individual the same age – there is simply no quantitative respiratory data on children below 13. That being said, you can still use Airofit and all its features if you’re younger, but the data will be compared to a 13-year-old.

If you are under 15, we strongly advise training with adult supervision.

We recommend that you start training 2×5 minutes every day. We have found that 2×10 minutes per day is the optimal training schedule, but you should gradually work your way up to it.

Your breathing muscles are just another muscle group. You should always ‘listen’ to your body. If the training gets too intense, take a break. 

User Manual Guide

The User Manual Guide you may refer to this link for download it.