A single greenscreen activated carbon filter has a flattened surface area of a football field. How active carbon works. Activated carbon absorbs gases and particles by a combination of London Force and small electrostatic forces that creates a type of capillary action. In layman's terms, activated carbon acts much like a sponge absorbing water, except that the carbon absorbs the materials at a micro level. Active carbon's holding power.
Activated carbon holds onto the material it has absorbs quite well.
For this reason, all greenscreen Air Filter Masks feature replaceable filters. The filters cannot be cleaned or re-used once fully absorbed. Fortunately, the materials used in our filters are biodegradable and environmentally friendly. This is a question that is difficult if not impossible to answer. Active carbon by nature loves to bond with anything and everything.