AlbuterolBronchodilator AgentsNebulizers and VaporizersIpratropiumAdrenergic beta-2 Receptor AgonistsAdministration, InhalationInhalation SpacersRacepinephrineMetered Dose InhalersAdrenergic beta-AgonistsBronchial SpasmOzone DepletionChlorofluorocarbonsAsthmaAerosol PropellantsBronchoconstrictionRespiratory Therapy Department, HospitalAerosolsBronchiolitisForced Expiratory VolumeDrug IncompatibilityForced Expiratory Flow RatesAnti-Asthmatic AgentsReceptors, Adrenergic, beta-2Equipment DesignBeclomethasoneMasksDouble-Blind MethodModels, AnatomicMyasthenic Syndromes, CongenitalPulmonary Disease, Chronic ObstructiveAirway ResistanceRespiratory TherapyEquipment SafetyBronchial Provocation TestsStereoisomerismManikinsRespiratory Function TestsPropanolaminesBudesonideIntubation, IntratrachealHydrocarbons, FluorinatedDrug CombinationsMissouriPeak Expiratory Flow RateTreatment OutcomeAndrostadienesRespiration, ArtificialPlethysmographyRespiratory SoundsGlucocorticoidsSpirometryAnesthesia, InhalationRespiratory MechanicsAdrenal Cortex HormonesDrug Administration ScheduleBronchiTracheaVital CapacityLungEstrenes