Carbon Dioxide is one of the essential elements that a plant uses for growth (photosynthesis). Therefore the availability of CO2 can be a limiting factor in healthy plant growth and development. The amount of CO2 found in the air naturally does limit plant growth to an extent. CO2 Enricha is an inexpensive way to enrich the CO2 content of the air in your grow room. CO2 Enricha is a powder that reacts with water to produce CO2. Simply drip water into the CO2 Enricha to add to the CO2 content of your room and increase your plants growth rates. CO2 Enricha comes in a 1 kg pack and a drip dispenser is also available.