Exhale CO2 for Plants includes a line of products that uses mycelial mass to help your plants breath and maximize growth from photosynthesis. Exhale CO2 for Plants particularly helps with the need of indoor growing projects where plants often lack enough CO2 for efficient photosynthesis. Exhale CO2 bags will help your plants produce vegetation and grow to their full potential. In addition to Exhale CO2 for Plants, HTG Supply also offers other CO2 & Atmosphere Control Products, Climate & Environmental Control Products, and more. Browse our wide variety of horticultural products from all of the top growing industry brands.