Radarcan R-501 User Manual page 15

Care and Maintenance
Do not put the device in water or any other liquid.
Cleaning.
If you need to clean the AIRPURIFIER CAR, unplug it from the
12 V outlet. Then use only a soft dry cloth, with no abrasive
products.
Do not expose the AIRPURIFIER CAR to extreme
temperatures.
It is recommended not to use it in places with temperatures
exceeding 122 °F (50 °C).
No refills.
The AIRPURIFIER CAR works without replacement parts,
making it more economical to use.