A consumer product for supplementing carbon dioxide is provided with delayed activation control in the form of a clamp. A bag, having a top and a bottom seal and a filter, contains a mycelial mass prepared under sterile laboratory conditions using aseptic techniques. The bag may be selectively clamped at various locations on its exterior. During manufacturing, the mycelial mass is sealed away from the air exchange portal by the clamp. The manipulation delays the optimized carbon dioxide generation and extends the product shelf-life significantly. The fungi are utilized on-demand by removal of the clamp and carbon dioxide flows from the product. Consumers will place the product near indoor plants. The precise clamping method delays the expiration of the product for storage and shipping optimization. The clamp is relocated to the top of the bag in order to provide a hanger for the carbon dioxide generator above plant level.
