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- RadAway can be used directly on dwellers inside your Vault to reduce their irradiation and remove the penalty to their max health level.
- RadAway can also be issued to dwellers out exploring, allowing them to remove radiation and maximize their health again, and explore for longer. A dweller going into the wasteland can hold a maximum of 25 RadAway, and tapping the RadAway icon when sending them will outfit them with that amount.