CO2 is not new to indoor gardening, its been around for decades. We are the first company to design a mushroom bag in order to bring natural CO2 to the market. Since our debut, we have seen many knockoffs, some that do it entirely wrong, and some that try to copy our bags all the way from the plastic we use all the way down to our patented genetics. Still, none can match our quality. 'The Original CO2 bag' seal is our way of making sure you know that you are getting the quality you pay for. - We are the original CO2 bag, don't settle for anything less.