NOVELTY - Liquid, gas and/or vapor phase producing layer (I) comprises: at least one compound (A) embedded in the liquid, gas and or vapor phase producing layer that is capable of producing a liquid, gas and/or vapor phase compound (where (A) has a shelf-life of at least about 3 months as a result of being embedded in the liquid, gas and/or vapor phase producing layer).    USE - (I) is useful: for the preservation of cut flowers or potted plants; in medicines, pharmaceuticals or other therapies, corrosion protection, waste disposal, food storage, food and beverage packaging, cosmetics, pharmaceuticals, horticulture, hospitals, doctors' offices, emergency rooms, trauma centers, non-traditional settings (e.g. battlefield), paint, water, gels, lotions, creams, oil and diesel fuel.    ADVANTAGE - (I) is inexpensive, compact and/or light-weight.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a liquid, gas and/or vapor phase producing film (II) comprising: a gas-impermeable and liquid-impermeable layer having a first surface and a second surface; (I) having a first surface and a second surface (where the first surface of (I) facing the second surface of the gas-impermeable and liquid-impermeable layer); and a water-impermeable, gas-permeable layer having a first surface and a second surface (where the first surface of the water-impermeable, gas-permeable layer facing the second surface of (II));    (2) a liquid, gas and/or vapor phase producing capsule comprising: a water-impermeable, gas-permeable layer having a first surface and a second surface; (I) having a first surface and a second surface (where the first surface of (I) facing the second surface of the water-impermeable, gas-permeable layer); a gas funneling or directing layer formed to cover at least a portion of the of the first surface of the water-impermeable, gas-permeable layer; and a gas-impermeable and liquid-impermeable layer surrounding any exposed portion of the water-impermeable, gas-permeable layer and at least the second surface of (I) (where (I) contains (A)); and    (3) a liquid, gas and/or vapor phase producing capsule comprising: a water-impermeable, gas-impermeable shell; and a one-way vent, the shell defining in conjunction with the one-way vent an interior space (where the interior space comprising (A)) (where (A) has a shelf life of at least about 3 months as a result of being contained within the interior space defined by the combination of the water-impermeable, gas-impermeable shell and the one-way vent).