HumiditySteamHeatingVentilators, MechanicalAir ConditioningRespiration, ArtificialNebulizers and VaporizersNasal ObstructionOxygen Inhalation TherapyThermometersThoracic DiseasesEquipment DesignNoninvasive VentilationHealth Facility EnvironmentContinuous Positive Airway PressureWater Loss, InsensibleAerospace MedicineRespiratory TherapyEnvironment, ControlledCathetersMasksVentilationRespiratory Physiological PhenomenaAerosolsHigh-Frequency VentilationPositive-Pressure RespirationAir Pollution, IndoorAircraftTidal VolumeHot TemperatureRespiratory InsufficiencySleep Apnea, ObstructiveIntubation, IntratrachealAnesthesia Recovery PeriodTemperatureCross-Over StudiesCalibrationEvaluation Studies as TopicTreatment Outcome