First things first.
Copying in class is bad. But copying wrong is even worse.
Did you see "naneo" on the button or "nanoe" ?
I can explain the second word "nanoe". The first "naneo', well,.................
Nanoe seems to be something that generates negative ions which are added to the A/C outlet vent which purifies the air.
According to Panasonic the maker, "Nanoe, the revolutionary air-purifying and filtering system. Using nano-technology, fine e-ion particles are released by the system, which deactivate 99% of airborne bacteria and virus in the filter’s indoor unit to ensure the fast cleaning of the air. It also neutralises odours to provide a more pleasant and healthy environment."
I am sure I copied correctly !