| 摘要 |
Packages (10) and structures (50) with selective dosing of active agents are described. The at least one active agent includes a freshness-extension agent to inhibit spoilage of perishable product disposed in the package (10), an odor management agent to reduce, mask, or neutralize odors from garbage or waste disposed in the package (10), a color indicator to indicate the status of one or more other active agents, or another type of agent. Selective dosing is achieved by covering the active agent or agents by a plurality of covers (1310). Some of these covers (1310) may be walls of a package itself.
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