Excellofizz releases CO2 into your greenhouse atmosphere allowing leafy plant tissue to quickly and easily absorb carbon. Excellofiz is designed for the smaller indoor grower. It allows a simple and economical way of providing accurate CO2 to your plants with no equipment needed for dispensing or monitoring, especially in situations where venting is limited. Excellofiz emits the proper CO2 levels for indoor plants by reacting and giving off pure CO2 gas and also absorbing oxygen from the air.