What are the alarms and beeps on the CAIRE FreeStyle Comfort?

There are numerous alarm indicators and screen symbols on the LCD control screen as well as audio alerts and beeps on the CAIRE FreeStyle Comfort Portable Oxygen Concentrator. A warning and/or audio alert represents the possibility of harm to the operator or unit. To assist in understanding the signals and maximize your oxygen therapy experience, please refer to the chart below.

CAIRE FreeStyle Comfort Alerts Explained

Priority #
Alarm Description
Display



Audible Signal
Additional Details
1
System Malfunction - Battery Over Temperature
Caire Comfort Freestyle Alarms -  System Malfunction -  Battery Over Temperature
1 beep every 20 seconds
Unit will alarm when battery temperature is approaching safety shutdown threshold. If shutdown threshold is reached, unit will shut down. If external power is connected, alarm screen will display and audible alarm will continue for 2 minutes.
2
System Malfunction - High Temperature
CAIRE Comfort FreeStyle Alarms -  System Malfunction - High Temperature
1 beep every 20 seconds
Unit will alarm when internal temperature is approaching shutdown threshold. If shutdown threshold is reached, unit will shut down and alarm screen will display and audible alarm will continue for 2 minutes.
3
System Malfunction - High Pressure
CAIRE Comfort Freestyle Alarms -  System Malfunction - High Pressure
1 beep every 20 seconds
If shutdown threshold is reached, unit will shut down and alarm screen will display and audible alarm will continue for 2 minutes.
4
No Breath Detected
Caire Comfort Freestyle Alarms -  No Breath Detected
1 beep every 30 seconds
No breath detected for 15 seconds. Activated after first breath or warm up screen is off, whichever comes sooner.
5
Low Battery - Shut Down
Caire Comfort Freestyle Alarms -  Low Battery - Shut Down
1 beep every 30 seconds
Alarms until battery runs out of power and unit shuts down
6
Warm Up
Caire Comfort Freestyle Alarms -  Warm Up
None
Unit will start by auto-dosing until a breath is detected or Warm up ends, whichever is sooner.
7
Low Concentration
Caire Comfort Freestyle Alarms -  Low Concentration
1 beep every 30 seconds, for up to 5 minutes
N/A
8
System Malfunction - Flow Rate (OCD Valve Failure, Obstruction of Gas Pathway)
Caire Comfort Freestyle Alarms -  System Malfunction - Flow Rate
1 beep every 30 seconds
N/A
9
Low Battery
Caire Comfort Freestyle Alarms -  Low Battery
1 beep, no repeat
N/A
10
Breathing Rate Exceeded
Caire Comfort Freestyle Alarms -  Breathing Rate Exceeded
1 beep every 60 seconds
Alerts when breathing rate exceeds 40 bpm
11
System Malfunction - Fan Failure
Caire Comfort Freestyle Alarms -  System Malfunction - Fan Failure
None
N/A
12
System Malfunction - Low Pressure
Caire Comfort Freestyle Alarms -  System Malfunction - Low Pressure
None
N/A
13
System Malfunction - Low Tempature
Caire Comfort Freestyle Alarms -  System Malfunction - Low Tempature
None
N/A
Info
Start Up
Caire Comfort Freestyle Alarms -  Start Up
1 beep
Screen displays at power-on and one beep to confirm buzzer is functioning. Start up screen displays current firmware revision.
Info
Normal Run Screen
Caire Comfort Freestyle Alarms -  Normal Run Screen
None
N/A
Info
Setting Changed
Caire Comfort Freestyle Alarms -  Setting Changed
1 Beep
N/A
Info
Plug in external - Power in the off condition
Caire Comfort Freestyle Alarms -  Plug in external - Power in the off condition
Caire Comfort Freestyle Alarms -  Plug in external - Power in the off condition
None
Display CAIRE screen for 2 seconds, followed by Battery & Plug status for 5 seconds before screen turns off.
Info
Plug in external power in the run condition
Caire Comfort Freestyle Alarms -  Plug in External Power in the Run Condition
None
N/A
Info
Unplug external power in the off Condition
Caire Comfort Freestyle Alarms -  Unplug external power in the off Condition
1 Beep
Display CAIRE screen for 2 seconds and then turn display off.
Info
Standby mode
Caire Comfort Freestyle Alarms -  Standby Mode
Caire Comfort Freestyle Alarms -  Standby Mode
None
Screen will display for 5 seconds then turn off.
Info
Airplane Mode - Battery Power
Caire Comfort Freestyle Alarms - Airplane Mode - Battery Power
1 Long Beep
Screen will display for 5 seconds then turn off.
Info
Airplane Mode - Plugged In
Caire Comfort Freestyle Alarms -  Airplane Mode - Plugged In
1 Long Beep
Screen will display for 5 seconds then turn off.

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