The activated charcoal filter fits inside the Black Ice Breathing Mask
. It is made of 5 layers designed to filter particles as small as 2.5 microns. That means it will filter smoke, smog, dust, pollen and other fine particles. A 2.5 micron particle is small enough that it can only be seen by a microscope.
The key is the filter's activated charcoal center layer. Activated charcoal will adsorb* chemicals, gases, viruses and bacteria, neutralizing them in the pores of the charcoal. That's why charcoal filters are used in commercial HEPA filters. It is like having a HEPA filter on your face!
Charcoal is also used to filter water and is used to filter blood in dialysis machines.
Each insert will provide approximately 50 hours of use in a smoky, smoggy or dusty area. Once the filter is clogged with particulate matter, it needs to be replaced. However, if you are using it in a relatively clean air environment, you can use the filter for weeks. The charcoal adsorbs and neutralizes germs (like charcoal in a water filter) and doesn't release germs back into the air.
Remove the filter when washing the cotton mask.
Please note there are both ADULT-size filters and CHILD-size filters to fit the Black Ice Breathing Masks. The child-size is perfect for ages 5-12 (even if older, for small faces or if petite -- 5 feet or less in height).
*Important Medical Health Disclaimer:
The Breathing Mask is not a replacement for medical grade personal protective equipment, and in circumstances where personal protective equipment is mandatory, you should only use NIOSH approved equipment. The decision to use this mask is solely your own and while it may significantly reduce the chance of infection (the charcoal is the key), it is not guaranteed to prevent you from getting an illness like COVID-19.
Please remember that the use of the Breathing Mask is not intended to replace other recommended measures to stop the community spread of COVID-19, such as social distancing, washing your hands and refraining from touching your face. Follow the latest advice of the CDC and your own health care professionals as to how best to keep yourself safe.
* adsorb: to gather (a gas, liquid, or dissolved substance) on a surface in a condensed layer: Charcoal will adsorb gases. (Dictionary.com)