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U.S. Department of Health and Human Services

Recognized Consensus Standards: Medical Devices

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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 064 Date of Entry 05/26/2025 
FR Recognition Number 1-196
Standard(Included in ASCA)
ISO  80601-2-90 First edition 2021-08
Medical electrical equipment - Part 2-90: Particular requirements for basic safety and essential performance of respiratory high-flow therapy equipment
Scope/Abstract
This document applies to the basic safety and essential performance of respiratory high-flow therapy equipment, in combination with its accessories:
- intended for use with patients who can breathe spontaneously; and
- intended for patients who would benefit from improved alveolar gas exchange; and who would benefit from receiving high-flow humidified respiratory gases, which can include a patient whose upper airway is bypassed.

EXAMPLE 1 Patients with Type 1 Respiratory Failure who exhibit a reduction in arterial blood oxygenation.

EXAMPLE 2 Patients who would benefit from reduced work of breathing, as needed in Type 2 Respiratory Failure, where arterial carbon dioxide is high.

EXAMPLE 3 Patients requiring humidification to improve mucociliary clearance.

Respiratory high-flow therapy equipment can be intended for use in the home healthcare environment or intended for use in professional healthcare facilities.

NOTE 1 In the home healthcare environment, the supply mains is often not reliable.

Respiratory high-flow therapy equipment can be:
- fully integrated ME equipment; or
- a combination of separate items forming a ME system.

This standard also applies to other types of respiratory equipment when that equipment includes a respiratory high-flow therapy mode.

NOTE 2 This standard and ISO 80601-2-12[14] are applicable to a critical care ventilator with a high-flow therapy mode.

Respiratory high-flow therapy equipment can be transit-operable.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§868.5454 High Flow/High Velocity Humidified Oxygen Delivery Device Class 2 QAV
Relevant FDA Guidance and/or Supportive Publications*
1. AAMI CR500:2019 Basic Introduction to the IEC 60601 Series.

2. Reprocessing Medical Devices in Health Care Settings: Validation Methods and Labeling Guidance for Industry and Food and Drug Administration Staff, issued March 2015.

3. Guidance for Content of Premarket Submissions for Device Software Functions: Guidance for Industry and Food and Drug Administration Staff, issued June 2023.

4. Cybersecurity in Medical Devices: Quality System Considerations and Content of Premarket Submissions: Guidance for Industry and Food and Drug Administration Staff, issued September 2023.

5. Applying Human Factors and Usability Engineering to Medical Devices: Guidance for Industry and Food and Drug Administration Staff, issued April 2016.

6. Guidance on Medical Device Patient Labeling: Final Guidance for Industry and FDA Staff, issued April 2001.

7. ISO 18562-1 Second edition 2024-03 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 1: Evaluation and testing within a risk management process.

8. ISO 18562-2 Second edition 2024-03 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 2: Tests for emissions of particulate matter.

9. ISO 18562-3 Second edition 2024-03 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 3: Tests for emissions of volatile organic compounds.

10. ISO 18562-4 Second edition 2024-03 Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 4: Tests for leachables in condensate.

11. ISO 5356-1 Third edition 2004-05 Anaesthetic and respiratory equipment - Conical connectors: Part 1: Cones and sockets.

12. ISO 5367 Sixth edition 2023-07 Anaesthetic and respiratory equipment - Breathing sets and connectors.

13. ISO 19223 First edition 2019-07 Lung ventilators and related equipment - Vocabulary and semantics.

14. ISO 80601-2-55 Second edition 2018-02 Medical electrical equipment - Part 2-55: Particular requirements for the basic safety and essential performance of respiratory gas monitor [Including Amendment 1 (2023)].

15. ISO 4135 Fourth edition 2022-01 Anaesthetic and respiratory equipment - Vocabulary.

16. IMDRF/GRRP WG/N47 Essential Principles of Safety and Performance of Medical Devices and IVD Medical Devices, issued April 2024.

17. IMDRF/GRRP WG/N52 Principles of Labelling for Medical Devices and IVD Medical Devices, issued April 2024.

Appropriate Use of Voluntary Consensus Standards in Premarket Submissions for Medical Devices - Guidance for Industry and Food and Drug Administration Staff, issued September 2018.
FDA Technical Contacts
 Ethan Nyberg
  FDA/OC/CDRH/OPEQ/OHTI/DHTIC/
  240-402-5973
  Ethan.Nyberg@fda.hhs.gov
 Rebekah Kelly
  FDA/OC/CDRH/OPEQ/OHTI/DHTIC/
  240-402-1991
  Rebekah.Kelly@fda.hhs.gov
Standards Development Organization
ISO International Organization for Standardization https://www.iso.org/
FDA Specialty Task Group (STG)
Anesthesiology
*These are provided as examples and others may be applicable.
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