I’m a great fan of your super-cool mask. For a while I used a 3M face mask when cycling but found that I got a staph infection in my nose owing to the high amount of moisture it created. Yet without any mask when cycling in London my asthma became very bad. The solution was your amazing Totobobo super-cool mask. There are a number of reviews online, even by competing mask manufacturers which dismiss its efficacy and say how unnatural it is to breathe in through your mouth and out through your nose. What utter nonsense! After only a few days it had become second nature for me to breathe in this fashion when cycling. Now I swear by the mask and am writing with the express wish that you use my endorsement publicly.
Matthew (London, UK)