Abstract: An apparatus comprising a scrubber bed; at least one heat sink operatively connected to the scrubber bed; at least one screen connected to the scrubber bed; and a scrubber tube connected to the scrubber bed. Also, a method of using a multiple mission re-breather apparatus, the method comprising attaching the multiple mission re-breather apparatus; using the multiple mission re-breather apparatus in a dry environment; and using the multiple mission re-breather apparatus in a wet environment. Further, a method of controlling a multiple mission re-breather apparatus, the method comprising activating an electronics package of the multiple mission re-breather apparatus, the electronics package comprising software instructions for adjusting operational parameters of the multiple mission re-breather apparatus in response to a change in environmental pressure; and using the multiple mission re-breather apparatus.