These fragrances are used in our stone lamp burners. This 250ml bottle will typically last for 3 months based on normal usage of around 2-3 hours a day. You only need to have the lamp lit for a short time as after about an hour your whole home will benefit from the delicate scent.
You can change the fragrance in a lamp by pouring the remaining unused liquid back into the original bottle. Once you've refilled the lamp with the new fragrance it will gradually change over to the new scent in about 15 minutes. Obviously only do this when the lamp is not hot!
All the bottles have a child proof lid so do expect to put some downward effort as you turn it to open it.
** All the fragrances KILL 97% of COVID-19 virus infections **
What how it works in the video here.