An air revitalization apparatus and method simultaneously removes
carbon dioxide,
water vapor, and heat from air and produces
oxygen gas,
hydrogen gas, and concentrated
carbon dioxide gas, does not require an explosion proof
enclosure, and includes a fan configured to blow air into a first gas-liquid
contactor, an
electrochemical cell including first through fourth passages configured to emit
hydrogen gas, permit a flow of a
carbonate-
hydroxide solution, permit a flow of
carbonate-
bicarbonate solution, and emit
oxygen gas, respectively, the first and fourth passages separated by at least three gas-impermeable membranes, and a second gas-liquid
contactor, where the first gas-liquid
contactor, second passage, and a first pump are configured to circulate the
carbonate-
hydroxide solution therethrough, where the second gas-liquid contactor, third passage, and a second pump are configured to circulate the carbonate-
bicarbonate solution therethrough, and where the output of the first passage is operationally coupled to the second gas-liquid contactor.