TNB Naturals - The Enhancer CO2 CanisterBoost Growth Rates with CO2 the Quick and Easy Way Adding CO2 to your grow room helps to push growth to the limits by increasing the photosynthesis rates. Supplementing with CO2 can be quite costly to set up, but using The Enhancer makes it simple and cost effective. All you need to do is add some lukewarm water to the bottle and give it a shake that's it! You'll then generate a supply of CO2 that will cover an area of up to 144 square feet, for up to