Masimo - softFlow 50

Masimo softFlow™

For Spontaneously Breathing Adult Patients in Hospital and Long-Term Care Facilities

  • Respiratory support delivered through a soft nasal cannula interface
  • Wide flow range from 10-60 L/min* in 0.5 L/min steps to permit flow rate to be tailored to the specific needs of the patient
  • Ability to supplement oxygen with 0-60 L/min flow and up to 100% FiO2 from wall supply, oxygen cylinder, or concentrator
  • Integrated flow driver provides flow without the need for wall air supply
  • Warmed humidification of respiratory gas all the way to the patient’s nose to enhance therapy comfort and aid in mucous clearance1,2
  • Condensate-free delivery of a consistent, high-velocity flow during inspiration and exhalation
  • Auto-identification of type of nasal cannula and breathing circuit to improve and simplify workflow through automated configuration
  • Bacterial/viral filter between device and patient, rather than between device and room air, to reduce risk of cross-contamination

softFlow Accessories

Masimo - softFlow nasal application on woman laying in hospital bed

softFlow Nasal Applicator

Available in Small, Standard, Standard-Plus, and Large sizes

Masimo - Heater Wire in the Nasal Applicator

Heater Wire in the Nasal Applicator

Unique one-piece design permits heater wire all the way to the nares to reduce condensation

Masimo - softFlow 50 stand on white background

softFlow Product Stand

Masimo - woman on stomach in hospital bed with TNI softFlow
Masimo - Woman drinking water with TNI softFlow

Performance Data

  • Adjustable flow rate: 10-60 L/min* ± 2%, adjustable in 0.5 L/min steps to tailor flow to patient needs
  • Oxygen Flow Rate support: 0-60 L/min and up to 100% FiO2, with FiO2% indicator integrated into the display
  • Adjustable humidity/dew point settings from 30-37ºC, adjustable in 1ºC steps to tailor to patient needs
  • Integrated micro-particle filter
  • Nasal applicators include several sizes of soft, flexible nasal prongs to suit a wide range of patients
  • Disposable bacterial/viral filter (bacterial efficiency >99.999%; viral efficiency >99.99%) between device and patient reduce risk of crosscontamination and transition time between patients
  • Autofilling humidification water chamber eliminates need to manually refill humidity chamber between uses
  • Entire respiratory circuit is disposable to minimize risk of cross-contamination and reduce time to clean and disinfect the device between patients


  1. 1.

    Hasani, A et al. Chron Respir Dis 5, no. 2 (2008): 81-86.

  2. 2.

    Roca, O et al. Respir Care 55, no. 4 (2010): 408-413.

  3. * The softFlow 50 is FDA cleared for flow rates up to 50 L/min and in hospital and long-term care facilities. The 60 L/min version and the home use version are being made available in the US under the FDA Enforcement Policy for Ventilators and Accessories and Other Respiratory Devices During the COVID-19 Public Health Emergency.


Masimo - Front page of Product Information - Masimo softFlow 50

Product Information

Caution: Federal (USA) law restricts this device to sale by or on the order of a physician. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.