SIST EN ISO 80601-2-74:2026

Overview

SIST EN ISO 80601-2-74:2026 defines the particular requirements for the basic safety and essential performance of medical electrical equipment used for respiratory humidification. This standard applies to humidifiers, including active heat and moisture exchangers (HMEs), and their accessories when forming a medical electrical (ME) system. The requirements cover a broad range of uses, such as invasive and non-invasive ventilation, nasal high-flow therapy, obstructive sleep apnoea therapy, and humidification therapy for tracheostomy patients.

Its primary focus is to ensure that respiratory humidifying equipment and combinations with relevant accessories are safe, perform as intended, and can be effectively used in both clinical and home healthcare environments. The document replaces the 2021 edition, incorporating updated references and clarifying requirements.

Key Topics

• Basic Safety and Essential Performance: Includes standards for electrical, mechanical, thermal, and usability factors specific to respiratory humidifying devices.
• Accessories and System Integration: Addresses requirements for heated breathing tubes, heated breathing tube controllers, and other accessories. These elements are critical because their characteristics may influence the safety and performance of the overall ME system.
• Types of Respiratory Humidification: Encompasses equipment for humidification in invasive and non-invasive ventilation, high-flow oxygen therapy, tracheostomy care, and sleep apnoea therapy.
• Active vs. Passive Humidification: Covers only active HMEs (devices that actively add moisture/heat); passive HMEs and room humidifiers are excluded and referenced in separate standards.
• Marking, Identification, and Documentation: Provides guidance on labels, symbols, instructions for use, and technical information to ensure correct usage.
• Collateral and Particular Standards: References related international standards and clarifies how they apply within the broader 60601 family.

Applications

The requirements in ISO 80601-2-74:2026 are intended for manufacturers, regulatory authorities, and users involved in design, procurement, or operation of respiratory humidification equipment, including:

• Critical care and intensive care units: Ensuring safe humidification as part of life-support ventilators.
• Home healthcare: Application to devices used for chronic respiratory conditions in non-clinical environments.
• Sleep medicine: Relevant for equipment supporting therapies like CPAP for sleep apnoea, where humidification enhances patient comfort and adherence.
• Surgical and emergency settings: Addressing safety features where patient airways are bypassed, increasing humidification challenges.
• Paediatric and tracheostomy care: Ensuring specialized humidification is available for sensitive patient populations.

In all contexts, correct humidifier integration reduces risks such as airway irritation, secretion desiccation, and device interoperability failures.

Related Standards

For comprehensive compliance and device safety, the following international standards are especially relevant:

• IEC 60601-1: General requirements for electrical medical equipment safety and performance.
• ISO 5367: Performance and safety for breathing tubes and connectors.
• ISO 20789: Specifications for cold pass-over and bubble-through humidification devices.
• ISO 9360-1 and ISO 9360-2: Requirements for passive heat and moisture exchangers (excluded from this standard).
• ISO 80369 series: Small-bore connector safety for respiratory and other healthcare applications.
• IEC 60601-1-2, IEC 60601-1-6, IEC 60601-1-8, IEC 60601-1-11: Collateral standards for EMC, usability, alarms, and home healthcare environments.
• EC Regulation 2017/745: General medical device safety and performance regulations (Europe).

Adoption of SIST EN ISO 80601-2-74:2026 supports regulatory compliance, improves patient safety, and ensures interoperability of respiratory humidifying equipment and systems in diverse healthcare environments. Manufacturers are strongly encouraged to review the detailed requirements of this and related standards to ensure robust device design, labeling, and user instructions.