Replacement filter for our Bering anti-pollution motorcycle face mask. Does exactly what it says on the tin and helps you breathe easily when out on the bike. Note that:
The filter should be replaced after 200 hours of riding assuming "large city" levels of pollution and normal breathing.
The anti-pollution filter is made from activated carbon cloth which absorbs organic vapours, acid gases and stops irritant dust from entering the respiratory system so that you can breathe better.