Automated External Defibrillator - HeartStart MRx Monitor/Defibrillator
Philips MRx devices have an EtCO2 module that may contain contamination; this contamination (will/may) cause the device to be unable to display the EtCO2 or CO2 waveform (capnogram).
20 units affected. 18 domestic, 2 foreign.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-0278-2018