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Appendix B
– CO Check+ and Environmental
Capture
When the Environmental reading is enabled, background
CO levels are taken into account when carrying out a
breath test. If the background levels are 10ppm for
example, then when the person is taking a breath test this
background reading of 10ppm will be taken into account.
For example, if the Environmental monitor is ON and a
reading of 10ppm is detected and the patient records
3ppm for example, then the measurement displayed will
be the higher value i.e. 10ppm.
Conversely, if the Environmental monitor is OFF, then the
measurement displayed will be value recorded by the
patient i.e. 3ppm.
