VARON NT-4/VH03, Instruction Manual, Page: 15 / 86

▲ Disassembly: Pull out the air inlet cover outward from the back of the
machine to remove the filter.
Whether to clean or replace the filter and filter cotton shall be determined
according to the actual use conditions. If the filter is dirty or clogged, it
should be cleaned or replaced immediately regardless of the using time.
Note: Filters and filter pads are consumables and need to be replaced
regularly.
▲ Cleaning: Clean with diluted detergent first and rinse with water. Install
it on the machine after it is completely dry.
Clean the oxygen inhaler and atomization components
Cleaning should be done after each use. The nasal suction heads on the
nasal cannula should be cleaned and disinfected after each use. Soak in
5% potassium permanganate solution for 5 minutes, and then clean it with
clean water; or wipe it with alcohol.
Fuse replacement
Unplug the power, use a slot screwdriver to pry open the fuse cap (as
shown in the diagram), remove the invalid glass fuse, and then install a
new one. Put the fuse cover back in place and tighten it.
14
Air inlet cap
Filter
Filter cotton