I use this oil in an electric diffuser. I popped in 6 drops and set the diffuser on for a maximum of 3 hours. The hallway soon fills up with the lovely scent of Eucalyptus in seconds.
I have not tested to see if it would work with just water any other oil. The oil is certainly worth the money as it comes in 100ml bottle, I have purchased cheap oils from cheap stores, and they either smell of nothing or barely last, so it is comforting to know this was money well spent. The 100ml does last a LONG time, so it may be quite some time before I need to put in another order. I would recommend this oil to anyone looking to purchase scented Essential oil. I am yet to try it in a reed diffuser to see if it works.
Get your own at: https://amzn.to/3sxC20b