27
28
Maximum limited
pressure
The maximum limited pressure
20 cmH
2
O in normal condition
40 cmH
2
O under single fault Condition
The Uncertainty of
measurement
For measures of pressure:±0.25 hPa
For measures of flow:±2.5 L/min
Expected service
life
Device（excluding
accessories）
5 years
Water tank
90 days
17. Symbols
f
17.1 The following symbols may appear on the product or packaging:
Symbol Meaning
Symbol Meaning
Follow instructions for use
Press to start /stop therapy
Caution
Temperature limitation for storage and
transport
Manufacturer
Type BF applied part
Date of manufacture
Class II equipment
Serial number
Maximum water level
Rx
Only
Prescription only
Minimum water level
Warning: hot surface
European Authorized Representative
Environmental information (EU directive 2012/19/EE Waste Electrical and Electronic
Equipment (WEEE))
Protected against finger sized objects and against dripping water on the surface of the
device
f
17.2 Disposal statement:
Warning:
Please contact local authorities, your provider, or YUWELL to determine the proper method of
disposal of this device.
18. Limited warranty
YUWELL warrants that your device shall be free from defects in material and workmanship from date
of purchase for the period specified below:
Product
Warranty period
Water tank
90 days
Power adapter
1 year
Device
2 years
The quality warranty is only available to the initial customer. It is not transferable. Warranty is void on
product sold, or resold, outside the original purchase, repaired by the company without accredited,
and pollution caused by smoking.
YUWELL has the interpretation about the device's warranty.