ResMed AirFit N20 Guide D'utilisation page 16

Symbols
The following symbols may appear on your product or packaging:
Catalog number
Humidity limitation
Manufacturer
Keep away from rain
Nasal mask
Size - small
Size - large
Indicates a Warning or Caution and alerts you to a possible injury or explains
special measures for the safe and effective use of the device
Caution, consult accompanying documents
Prescription only (In the US, Federal law restricts these devices to sale by or on
the order of a physician)
10
Batch code
Temperature limitation
European Authorized
Representative
This way up
Device setting - Pillows
Size - medium
Fragile, handle with care