Gas ScavengersRespiratory Protective DevicesAdministration, InhalationHydrocarbons, BrominatedAnesthesia, Closed-CircuitInhalation ExposureVacuumSmoke Inhalation InjuryBurns, InhalationSodium HydroxideProtective DevicesHydrocarbons, FluorinatedInhalationAdministration, OralIrritantsFiresNebulizers and VaporizersRadiation-Protective AgentsStereotaxic TechniquesAir Pollutants, OccupationalAerosolsAbsorptionEquipment DesignAsthmaWorkCarbon DioxideOccupational ExposureBreast DiseasesLungAnesthetics, InhalationDose-Response Relationship, DrugDrug Administration ScheduleTime FactorsAnesthesia, InhalationInjections, IntravenousPowdersRats, Sprague-DawleyDrug Administration RoutesUnited States Food and Drug AdministrationEvaluation Studies as TopicAdministration, IntranasalDisease Models, AnimalBronchial Provocation TestsRats, WistarBronchodilator AgentsRats, Inbred F344AlbuterolInjections, IntraperitonealBiological AvailabilityAtmosphere Exposure ChambersMice, Inbred C57BLParticle SizeBronchoalveolar Lavage FluidCross-Over StudiesDouble-Blind MethodDry Powder InhalersLiverInjections, SubcutaneousMethacholine ChlorideXenon RadioisotopesInhalation SpacersForced Expiratory VolumeBronchoconstrictionAirway ResistanceHalf-LifeRespirationBurnsDogsAdministration, TopicalNitrous OxideBronchiTissue DistributionMice, Inbred BALB CBronchial HyperreactivityInfusions, IntravenousAdministration, RectalInjections, IntramuscularMetered Dose InhalersArea Under CurveAir PollutantsCarboxyhemoglobinRespiratory Function TestsSmokeDrug InteractionsTreatment OutcomeBrainRespiratory SystemBlood PressureOrgan SizeBody WeightRats, Inbred StrainsNitric OxideIsocyanatesRespiratory TherapyRandom AllocationAdministration, CutaneousCromolyn SodiumOxygen Inhalation TherapyBronchoconstrictor AgentsAnalysis of Variance