Administration, InhalationAerosolsInhalation ExposureSmoke Inhalation InjuryBurns, InhalationInhalationAdministration, OralLungAnesthetics, InhalationDose-Response Relationship, DrugDrug Administration ScheduleTime FactorsAnesthesia, InhalationInjections, IntravenousPowdersRats, Sprague-DawleyDrug Administration RoutesUnited States Food and Drug AdministrationAdministration, IntranasalDisease Models, AnimalBronchial Provocation TestsRats, WistarAsthmaBronchodilator AgentsRats, Inbred F344AlbuterolInjections, IntraperitonealBiological AvailabilityAtmosphere Exposure ChambersMice, Inbred C57BLParticle SizeBronchoalveolar Lavage FluidCross-Over StudiesDouble-Blind MethodDry Powder InhalersLiverInjections, SubcutaneousAir Pollutants, OccupationalMethacholine ChlorideXenon Radioisotopes