Carbon DioxideCarbonNitrogen DioxideCarbon MonoxideSulfur DioxidePartial PressureCapnographyAtmosphereInsufflationNanotubes, CarbonOxygenRespirationHypercapniaCarbon IsotopesPulmonary Gas ExchangeBlood Gas Monitoring, TranscutaneousChromatography, Supercritical FluidCarbon FootprintPositron-Emission TomographyBlood Gas AnalysisCarbon SequestrationLasers, GasGreenhouse EffectOtoacoustic Emissions, SpontaneousPneumoperitoneum, ArtificialTidal VolumeMethaneVehicle EmissionsTomography, Emission-ComputedCarbon Monoxide PoisoningGasesDry IceAir PollutantsAcidosis, RespiratoryOxygen ConsumptionBicarbonatesHydrogen-Ion ConcentrationAirCerebrovascular CirculationFluorodeoxyglucose F18Thorium DioxideRadiopharmaceuticalsNitrous OxideCarbon RadioisotopesBiomassRespiratory Dead SpaceEcological Systems, ClosedPhotosynthesisNitrogenCarbon TetrachlorideTemperatureCarbonic AnhydrasesAir PollutionTomography, Emission-Computed, Single-PhotonSoilHypocapniaHyperventilationAcetatesEnvironmental MonitoringOxidesCarbonatesEmbolism, AirPulmonary VentilationHypoventilationFossil FuelsTime FactorsCarbon CycleCarbon DisulfideTitaniumAnesthesia, InhalationWaterSilicon DioxideChemoreceptor CellsAutotrophic ProcessesRespiratory MechanicsRespiratory InsufficiencyRespiration, ArtificialTreesAcid-Base EquilibriumHydrogenHeliumExtraterrestrial EnvironmentEcosystemPneumoperitoneumOxidation-ReductionAnaerobiosisAnesthetics, InhalationArgonOzoneGlobal WarmingEnvironmental RemediationLaser TherapyFluorine RadioisotopesFormatesCulture MediaRespiratory Function TestsVentilationCarbonic AcidAmmoniaEuthanasia, Animal