ExHale Co2 bags cultivate CO2 24 hours a day with no need to refill bottles or use expensive CO2 production units. This mycelial mass cultivates CO2 and the one-way breather patch releases CO2 continually for up to 6 months and will provide enough Co2 for 4 - 6 plants. Can be used in both vegetative plant growth as well as for fruit and flower production.
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