Medical gases

The right choice for your medical gas assay and impurity monitoring

Our high-performance solutions and technologies deliver the measurements required to meet US and European Pharmacopeia concentration limits for medical gas quality using industry-approved sensing techniques.

Your resources for medical gas analysis applications

Find out more about our solutions for medical gas purity monitoring and related processes. Download the latest information now and ensure you stay up to date.

Medical Gases Systems Brochure

Medical Gases Systems Brochure

Industrial Gases Magazine Issue 02

Industrial Gases Magazine Issue 02

Purity & Specialty (IG) Gas Analysis Magazine Issue 01

Purity & Specialty (IG) Gas Analysis Magazine Issue 01

ES Magazine Issue 19 Chroma NanoChrome

ES Magazine Issue 19 Chroma NanoChrome

Meeting global Pharmacopeia challenges for purity monitoring

Medical gases are used for medical treatment and are regulated under the same rules as medicinal drugs. These regulations – typically covered in a publication called a Pharmacopeia – specify how each gas should be produced and validated, the acceptable purity level, and official measurement records. Purity assurance requires accurate, reliable gas analysis solutions.

Strict regulations require a powerful gas analysis solution

For example, under European Pharmacopeia (EP) rules, medical oxygen (O2) requires an assay measurement to ensure O2 purity is better than 99.5%, and impurity measurements of carbon monoxide (CO) and carbon dioxide (CO2). The impurities must be less than 5 parts per million (ppm) of CO and less than 300ppm of CO2. Paramagnetic sensing is specified for the O2 measurement, and Infrared Gas Filter Correlation (Gfx) for the other two results.

SERVOPRO Servomex MultiExact 4100

An advanced solution for purity assay and impurity detection

Servomex offers a combined solution for all three analytes, meeting EP standards and providing the measurement limits required. The SERVOPRO MultiExact 4100 is a multi-gas analyzer capable of monitoring up to four gas streams simultaneously. It can be fitted with a Paramagnetic cell for a highly stable O2 reading, and a customized Infrared Gfx sensor for CO and CO2.

Your trusted experts for medical gas analysis

With extensive experience in the medical gas sector, Servomex has a range of high-performance solutions to meet the measurements required, backed by our expertise and service support structure.

Expert team

We’re global experts in medical gas analysis, with applications knowledge that enables us to deliver the results your process needs, customized to suit your unique operating conditions.

Quality products

Our wide range of gas analysis sensing technologies ensures we are able to deliver Pharmacopeia-approved measurements for essential assay or impurity applications.

Global support

All our highly sensitive analyzers are backed by a worldwide network of trained service engineers to ensure reliable operation at optimum levels of performance.

Meet the experts

Matt leads our expert Purity & Specialty team in providing products, knowledge
and service to the industrial, medical, UHP and semiconductor gas markets.

Matt Chambers, Business Unit Manager, Purity & Specialty

Responsible for managing our Chroma Business Unit, Claus is a highly experienced engineer who has worked at Servomex since 2004, leading the research and development of many new products. He is also a member of Servomex’s STEM program

Claus Agersbaek, Business Unit Manager, Chroma

Based in the US Technical Center, Joseph works closely with customers in the semiconductor and industrial gas markets, providing expertise and product solutions to meet their requirements.

Joseph Ha, Product Manager, Purity & Speciality

Chris works closely with our customers, sales team and engineers to drive growth through applications and product development.

Chris Davis, Product Manager

A longtime Servomex expert with more than 33 years of service behind him, Phil has a vast knowledge of semiconductor market requirements, and provides technical and applications support for customers, colleagues and channel partners alike.

Phil Rogers, Senior Product Specialist, Semiconductor Sector

Based in Singapore, Chee Wee oversees our direct and channel sales teams in the region, and manages all Servomex sites and operations in Asia.

Chee Wee Yap, Asia Sales Director, Asia Site Leader

Search Servomex Medical gases analyzers

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AquaXact Controller


Built specifically to work in harmony with the AquaXact 1688 ultra-thin film Aluminum Oxide moisture transmitter.

  • Specifically designed to operate AquaXact 1688
  • High-clarity colour touchscreen display
  • Alarms, relays, and advanced communications
  • Allows easy sensor tip replacement in the field
  • Powerful, intuitive software control
  • Compact and easy to integrate into your system



The Chroma is optimized to specific background gases to ensure optimum performance for your application.

  • Versatile, ultra-accurate trace gas analysis
  • Choice of non-depleting sensor technologies
  • Cost-effective solution for process control or quality monitoring
  • Works in a wide range of background gases
  • Compact 4U rack-compatible design
  • Flexible communication options

MiniHD 5200


The MiniHD 5200 portable gas analyzer is a rugged, heavy duty analyzer designed to accurately measure the levels of O2, CO and CO2 within common gas mixtures.

  • For field locations or light industrial applications
  • Measures O2, CO and CO2 in common gas mixtures
  • Portable analyser with a rugged and durable design
  • Uses digital Paramagnetic and Infrared sensing
  • Accurate measurements with no background interference
  • Intuitive, user-friendly interaction and interface

MiniMP 5200


The only truly portable battery-powered gas analyzer with MCERTS and TUV certification, offers single or dual measurement of oxygen (O2) and carbon dioxide (CO2).

  • High-performance oxygen and carbon dioxide analysis
  • Truly portable battery-powered gas analysis
  • Ideal for CEMS, with MCERTS and TUV certification
  • Accurate, long-life operation with minimal calibration
  • Combines Paramagnetic and Infrared technologies
  • Ideal for medical gas verification applications
Learn more Enquire now

MonoExact DF310E


Designed specifically for accurate measurements of oxygen in industrial gas (IG) applications.

  • Accurate measurements of oxygen and moisture
  • Designed for industrial gas applications
  • Tried and tested digital Coulometric oxygen sensor
  • Non-depleting Paramagnetic sensor option
  • Plug-and-play moisture sensor support
  • Analogue and digital communication options
Learn more Enquire now

MultiExact 4100


A high-performance multi-gas analyzer designed to provide up to four simultaneous gas stream measurements.

SERVOPRO MultiExact 4100
  • Highly adaptable multi-gas analyzer
  • Provides up to four simultaneous measurements
  • Wide range of sensing technology options
  • Versatile solution for industrial and medical gases
  • Built-in support for moisture sensor
  • Optional advanced digital protocols
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The latest news in medical gas applications

Find out what’s new in the medical gas sector, including our latest product releases and application solutions.

An interactive look at our support for medical gas production

June 2020

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Read the interactive version of our new ES magazine now

May 2020

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The Chroma now offers lower-level purity measurements – see the expert paper

March 2020

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Learn more about the Chroma in our new product video

November 2019

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Talk to our experts for more information

Still wondering if our medical gas analysis solutions are right for you? Contact our team to discover how we configure systems that deliver the measurements you need while conforming to your specifications.

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