A gas separation cartridge comprising: a housing containing multiple individual passages, wherein the multiple individual passages arc physically separated by a gas impermeable, inert barrier, and wherein the multiple individual passages each comprises an individual gas separation tube; an inlet port configured to receive an air sample in the housing; and a lower lid attached to a second scaling element, wherein the lower lid comprises an exit port configured to pass air out of the housing; wherein the multiple individual passages comprise a chemical or an absorbent or a mixture thereof wherein the chemical, the absorbent, or the mixture thereof is configured to remove one or more species from the air sample, wherein the housing is configured to provide a selective flow path through the inlet port, through at least one passage of the multiple individual passages, and out through the exit port; wherein the lower lid is attached to a switch containing multiple openings and passages for each air sample to separately flow through to a gas sensor, wherein the switch is connected to a tube selection component, which tube selection component is able to connect the gas separation cartridge to the gas sensor, wherein the tube selection component is rotatable; two tabs (24, 34) on the outside surface of the housing, wherein each tab (24, 34) resides near a tip (28, 38) of a gas separation tube, wherein the two tabs (24, 34) are each connected to an individual lever (26, 36) inside the gas separation cartridge, and wherein individual levers (26, 36) are located near the tips (28, 38) of the gas separation tube, wherein each lever and each tab are configured to break each tip (28, 38) of the gas separation tube to allow the air sample to travel into the gas separation tube. a housing containing multiple individual passages, wherein the multiple individual passages arc physically separated by a gas impermeable, inert barrier, and wherein the multiple individual passages each comprises an individual gas separation tube; an inlet port configured to receive an air sample in the housing; and a lower lid attached to a second scaling element, wherein the lower lid comprises an exit port configured to pass air out of the housing; wherein the multiple individual passages comprise a chemical or an absorbent or a mixture thereof wherein the chemical, the absorbent, or the mixture thereof is configured to remove one or more species from the air sample, wherein the housing is configured to provide a selective flow path through the inlet port, through at least one passage of the multiple individual passages, and out through the exit port; wherein the lower lid is attached to a switch containing multiple openings and passages for each air sample to separately flow through to a gas sensor, wherein the switch is connected to a tube selection component, which tube selection component is able to connect the gas separation cartridge to the gas sensor, wherein the tube selection component is rotatable; two tabs (24, 34) on the outside surface of the housing, wherein each tab (24, 34) resides near a tip (28, 38) of a gas separation tube, wherein the two tabs (24, 34) are each connected to an individual lever (26, 36) inside the gas separation cartridge, and wherein individual levers (26, 36) are located near the tips (28, 38) of the gas separation tube, wherein each lever and each tab are configured to break each tip (28, 38) of the gas separation tube to allow the air sample to travel into the gas separation tube.