Should I keep using this range hood?
My range hood recently, from time to time, it will fall a spot of green viscous liquid, I can't think of what it is, it's quite unlikely something I could find normally in daily life. But I am quite sure that it must not be something you can eat.
Does anyone know what it is?
Can I keep using this range hood or is it time to replace it?
What is the possible problem and can I have it fixed by myself?
Warranty definitely expired because it's over 10 years.