The CO2 Enhancer is a great alternative to the CO2 burners that can add unwanted moisture in your room as well as an alternative to fungal based CO2 Products. Unlike most others, The Enhancer is user activated and has a shelf life of three years. Reaching some of the highest levels in the industry, the CO2 Enhancer will hit up to 900 – 1200 PPM for every 12 x 12 space and last a little more than two weeks. Just add luke-warm water and give it a shake and the Enhancer will activate within 8 hours. When you are finished the the Enhancer, you can simply empty out the biodegradable contents and recycle the bottle.