Masimo - Root with ISA OR+

Root® with ISA™ OR+ Multigas Monitoring

Supporting Anaesthetic Agent and Ventilation Management

The ISA OR+ sidestream multigas analyser with the Masimo Root® patient monitoring and connectivity platform provides the following features and benefits:

  • During general anaesthesia, the ISA OR+ monitors the inhaled and exhaled concentration of five anaesthetic gas agents (Sevoflurane, Isoflurane, Halothane, Desflurane, Enflurane), carbon dioxide (CO2), nitrous oxide (N2O), and oxygen (O2), in addition to respiration rate
  • Requires only 50 ml sampling flow to support monitoring
  • Time-saving in critical situations with virtually no warmup time and full accuracy performance in less than 20 seconds
  • Automatic anaesthetic agent identification
  • Supports monitoring patients with high respiration rates, up to 150 bpm
  • Low-power consumption and automatic temperature and pressure compensation
  • Provides minimal alveolar concentration (MAC) calculated from the measured anaesthetic agents and N2O*
  • Appropriate for monitoring adult, paediatric, or infant patients in a range of clinical environments including the operating theatre and intensive care unit
  • Compatible with Masimo’s NomoLine™ Adapter and the NomoLine Airway Adapter Set to interface with endotracheal tubing



Masimo - ISA OR+ - Components

When technology modules are connected with Root, multiple additional parameters are available including Masimo SET® pulse oximetry, noninvasive and continuous haemoglobin (SpHb®), PVi®, SedLine® brain function monitoring, and O3® regional oximetry.


  1. *

     Altitude, patient age and other individual factors are not considered in the MAC calculation.


Masimo - ISA OR+ Multigas Monitoring Product Information

Product Information

Masimo - Brochure, NomoLine


For professional use. See instructions for use for full prescribing information, including indications, contraindications, warnings, and precautions.