Diffusers? So I got a diffuser awhile ago, and brand of just forgot...

So I got a diffuser awhile ago, and brand of just forgot roughly it until I decided to pretty up my room.
The smell of the scented grease that came beside it has run out. the jar and sticks still smell resembling the scent it had.
I'd resembling to refill it, near a new scent. But I'm afraid that the two will mix and it won't be pleasant.
Any dutiful ways to get the elderly smell out of the bottle and sticks?
(they are currently both soaking in hot water)
Where can I find a comforter?
Answers:    I wouldn't reuse the sticks, but you can find them online at candle/soap craft suppliers. The bottle can be cleaned by soaking surrounded by a mixture of vinegar and hot water. Just almost a tablespoon of vinegar should do the trick. I'd let it sit overnight, and after rinse well. Good luck!
Shop vacuum – would you use it inside...
Just clean the glass container out honest with hot soapy hose down.The sticks can not be used again if you are changing scent.The sticks are really cheap on eBay.The scents are legally cheap too for refills.It is closely cheaper buying the refills than the packages that have the jar with scent and the sticks.