Co2, Temperature and Humidity: How to Use Co2 to Increase Growth in Your Indoor Garden and Greenhouse - Softcover

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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.

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