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ToxCO CO Monitor

Quick, easy & non-invasive screening for CO poisoning

The ToxCO® is a carbon monoxide (CO) breath analyser to screen for CO poisoning. An ideal tool for emergency services and first responders, the ToxCO® is a quick, easy, reliable and completely non-invasive way to screen for CO poisoning.
ToxCO CO Monitor

Why ToxCO®

The ToxCO® is an easy to use, non-invasive breath and ambient air CO monitor, with three sampling modes, mouthpiece, face mask, and ambient monitoring to alert users of potentially fatal levels of CO in the air. 

Why is it important?

Clinical research has demonstrated that 'the concentration of carbon monoxide in end-expired air after breath holding correlates closely with carboxyhaemoglobin concentration'1.

With the ToxCO®, the mouthpiece and face mask sampling modes allow the user to test a patient independent of their consciousness, whilst the ambient sampling mode will safeguard the user, alerting them if they are entering an area with high levels of CO.

The ToxCO® helps to reduce unnecessary hospital admissions through instant screening but also helps to save the lives of your patients and your staff, one breath at a time.

Benefits to the user

The monitor provides instant results shown in %COHb which makes interpreting patient’s results quick and easy.
The colour touchscreen is quick and easy use, with visual prompts for patients during each test to ensure correct results every time.
There is automatic calibration and D-piece™ renewal reminders to prolong the life of your monitor, ensure accurate readings and increase infection control.
The monitor has built in SteriTouch® technology for improved infection control.
D-pieces are used in conjunction with the monitor to filter out 99.9% of airborne bacteria and single-use Steribreath™ mouthpieces for excellent, low-cost infection control.2
The ToxCO® will automatically log every breath test but also ambient readings when an alarm threshold is triggered for up to 500 readings.
There is also the option to tag a result with a place, patient’s name or ID. 
2 years warranty (subject to service & maintenance plan).


The latest ToxCO® literature.

SteriBreath™ mouthpieces

SteriBreath™ mouthpieces for use with Bedfont® breath analysis monitors, combining ease of use with optimum infection control.


The D-piece™ incorporates a one-way valve to prevent air being drawn back from the monitor. The breath then passes through an infection control filter, proven to remove and trap >99.9% of airborne bacteria1. The D-piece™ should be changed every four weeks or more often if visibly soiled. An automatic reminder will appear on the screen every 28 days.


The OneBreath™ mouthpiece is a single-use bacterial filter mouthpiece and can be attached directly to the monitor to take a breath sample. The OneBreath™ incorporates a one-way valve and an infection control filter, which are proven to remove and trap >99.9% of airborne bacteria1.

Face mask sampling system

This sampling system is single-patient use and allows the patient to breathe normally through a face mask in order to produce a breath sample. The face mask is available in three different sizes: infant, medium and adult.

Monitor cleaning wipes

Free from alcohol to ensure continued performance of your monitor. Products containing alcohol cannot be used on any of the ToxCO® range. Pack of 50 wipes.

Technical specifications

Concentration range (CO) (mouthpiece)
0-54%COHb/0-600 ppm
Full colour touchscreen
Detection principle
Electrochemical sensor
≤±5% difference on consecutive readings
Breath and Ambient Test Accuracy
≤±3ppm/10% – whichever is greater*
3 x AA (LR6 or equivalent) - up to 1000 minutes; 1 x CR2032 Lithium coin cell
T90 response time
<30 seconds
Operating temperature
Storage/transport temperature
Operating/storage/transport pressure
Atmospheric ±10%
Operating humidity
15-90% non-condensing
Storage/transport humidity
Sensor operating life
2 years
Sensor sensitivity
Sensor drift
<5% per annum
Approx. 37 x 77 x 140mm
Approx. 215g (including batteries)
Case: polycarbonate/ABS blend with SteriTouch® anti-microbial additive; D-piece™: polypropylene; SteriBreath™: polypropylene, OneBreath™ : polypropylene
H2 cross interference
*Readings of >500ppm at temperatures between 0-14°C can decrease accuracy to ≤±3ppm/15%


1. M J Jarvis D. Low cost carbon monoxide monitors in smoking assessment. [Internet]. PubMed Central (PMC). 2017 [cited 9 February 2017]. Available from:

2. Public Health England. An Evaluation of Filtration Efficiencies Against Bacterial and Viral Aerosol Challenges Report No. 17/001. London: Public Health England; 2017

Where can I buy?

If you would like more information or would like to purchase one of our monitors please select the country you are in on the right hand side. A full list of distributors in your area will be displayed.