Model with Sky Mask
The Cambridge “Sky mask” is comfortable and effective

The Cambridge “Sky Mask” offers effective protection against inhaling airborne contaminants such as dust, bacteria, toxic gases like ozone and formaldehyde, and even fine particles. While no filter can provide 100% complete protection, this mask comes very close with a 99% filtration rate. Therefore, we strongly recommend using this mask preventively during your flight.


The filter consists of three layers, including a “military-grade” activated carbon layer. According to the manufacturer’s specification sheet, this filter effectively blocks over 99% of harmful substances in the air, including:

  • Dust particles
  • Bacteria and viruses
  • Toxic gases like ozone and formaldehyde
  • Fine particles (down to 0.3 μm).

Despite this high filtration rate, the mask has surprisingly low breathing resistance and offers excellent comfort. It is delivered in a resealable plastic bag that easily fits in your carry-on or seat pocket.

Carbon Monoxide Protection

The specification sheet does not mention protection against carbon monoxide, but when we inquired via email, the manufacturer assured us that the mask provides good protection against carbon monoxide, albeit in a “limited capacity” (exact specifications were not provided).


The mask typically lasts around 340 hours, but heavy exposure to air pollution may shorten its lifespan. We recommend replacing the mask, for example, after a fume event.


The mask can be hand-washed without any issues for hygienic purposes, and this won’t affect the filter’s capacity. However, washing won’t remove the trapped particles, so it won’t extend the filter’s lifespan.


You can order your mask via this link. For further questions, please refer to the manufacturer’s FAQ page.