I need to get into CO2 monitor sales and then some cloud connected device that changes the CO2 levels somehow (maybe just a fan). After that, sell a subscriptio

I need to get into CO2 monitor sales and then some cloud connected device that changes the CO2 levels somehow (maybe just a fan). After that, sell a subscription to adjust the CO2 ppm through a website. People will fiddle with it and pay the subscription for the rest of their lives.