Co2 Temperature and Humidity

CO[subscript 2] is a gas found in the air. It is also a nutrient essential for plant growth. Indoor and greenhouse gardeners can enrich the atmosphere with it and increase plant growth by up to 200%!
CO[subscript 2] should be used by every serious indoor gardener since it is easy to supply, inexpensive, non-combustible, safe to use and produces such astonishing results.
CO[subscript 2] Temperature & Humidity was written for the hobbyist. It is easy to understand, and describes exactly how to set up the system in your space.