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Pollution Mask Pro N99 - Cambridge Mask

Cambridge Mask Company (British)

Pollution Mask Pro N99 - Cambridge Mask

HK$199.00 +





Worried about air pollution and the spread of germs in Hong Kong? Breathe easy with this military grade filtration face mask from leading British brand 'Cambridge Mask Company'. Protection for your whole family.


  • Suitable sizing for children and adults
  • Best of British technology: UK Ministry of Defence filtration
  • N99 certification guarantees consistent filtering of almost 100% particulate pollution, as well as bacteria and viruses
  • Adjustable fit to suit your needs
  • Quality guaranteed with manufacturer's limited warranty
  • Fast and FREE DELIVERY in Hong Kong

The unique filtration technology incorporates triple layer protection. The outer layer catches larger pollution particles including dust and PM10. The middle layer is the Three-Ply Micro Particulate Filter, which stops nearly 100% of smaller matter including PM2.5 and PM0.3. The inner layer is developed by UK’s Ministry of Defence and filters out viruses, bacteria and gas pollution including Volatile Organic Compounds (VOCs), Ozone, Benzathine and Formaldehyde.

***From now on, we will be including packs of 3 that include 2 stickers to “deactivate” our mask’s valve. The larger adhesive seal will deactivate the valve to prevent any chance of droplets being expelled. The smaller sticker shows to onlookers that the valve is deactivated. For each mask free of charge!***

Important note: the valve plays an important role in expelling moisture and reducing CO2. Therefore we only recommend using the seal stickers if you are legally required to. Although it is unlikely, if you do feel dizzy or have trouble breathing, remove the mask when you feel it is safe to do so and seek help immediately.


What size shall I order?

*Please note the XS size does not have a respirator, due to size constraints*

sizing chart as people

cambridge mask sizing

How do I put the mask on correctly?

putting on the mask

Washing and care instructions
Cambridge masks do not have a disposable filter, the whole mask is the filter. Instead, the mask is washable but cleaning only removes the dirt and not the pollution particles secured within the filter. Please replace your mask once every four months of continuous use or every six months after infrequent use. Submerge the mask in warm, soapy water and clean by hand. Rinse and leave to dry thoroughly.

What is PM2.5 particulate air pollution? LEARN MORE ABOUT AIR POLLUTION IN HONG KONG

Click here to read our popular blog post: Understanding Hong Kong's Air Pollution

Check out our BEST SELLER: PEEKair PM2.5 Air Quality Monitor. Know how polluted the air is exactly where you are. Read our reviews to see what your neighbours say about this product.

Filter The entire mask is the filter - comprising of three layers of protection
Warranty 3-months manufacturer's limited warranty. Respiratory masks are personal products which due to health standards may not be exchanged or returned for resale. Masks are guaranteed if defective in materials or construction only
Returns The customer must return this product at their own expense and including original packaging. First, email us at
Recommended age Suitable for both children and adults - see sizing chart
Colour Available in numerous colours and patterns


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