Administration, InhalationInhalation ExposureSmoke Inhalation InjuryBurns, InhalationInhalationAerosolsAnesthetics, InhalationAnesthesia, InhalationLungPowdersBronchial Provocation TestsAsthmaBronchodilator AgentsAlbuterolAtmosphere Exposure ChambersTime FactorsMetered Dose InhalersLethal Dose 50Dry Powder InhalersForced Expiratory VolumeAir Pollutants, OccupationalXenon RadioisotopesInhalation SpacersParticle SizeMethacholine ChlorideRats, Inbred F344Bronchoalveolar Lavage FluidRadiation DosageDouble-Blind MethodAdministration, OralBody BurdenAirway ResistanceBronchoconstrictionDrug Administration ScheduleBronchiAir PollutantsRespirationBurnsSmokeCarboxyhemoglobinBronchial HyperreactivityOccupational ExposureRespiratory Function TestsPlutoniumIsocyanatesRespiratory TherapyNitrous OxideBronchoconstrictor AgentsDustTrichloroethanesCromolyn SodiumRespiratory SystemBudesonideOxygen RadioisotopesCarbon DioxideOxygen Inhalation TherapyIpratropiumDisease Models, AnimalTreatment OutcomeInjections, IntravenousTerbutalineRadiometryIsofluraneGasesVolatilizationVehicle EmissionsCyanatesAnthraxDose-Response Relationship, DrugOxygenPneumoniaRats, Sprague-DawleyHydrocarbonsNasal CavityBiological AvailabilityCarbon MonoxideCoughAllergensAnti-Asthmatic AgentsBeclomethasoneHalf-LifeLung DiseasesArea Under CurveAlveolitis, Extrinsic AllergicEthanolaminesOzoneMucociliary ClearanceHistamineNo-Observed-Adverse-Effect LevelMineral FibersRespiratory MechanicsHalothaneDose-Response Relationship, RadiationCross-Over StudiesSiloxanesAirway ObstructionSkin AbsorptionAerosol PropellantsParticulate MatterMacrophages, Alveolar