Maintenance

SIGNIA 2.0 WAX GUARD FILTER CHANGE

https://www.youtube.com/watch?v=IX_hCxMHm

SIGNIA 3.0 WAX GUARD FILTER CHANGE

https://www.youtube.com/watch?v=tI5pJS9cNPg

OTICON WAX GUARD FILTER CHANGE

https://www.youtube.com/watch?v=HBqLzMMNAZE