First, thank you so much for posting these blends! I am so eager to try them. May I ask though – how does the size of your diffuser (and it’s water capacity) matter to the oil amounts in each ‘recipe’? For instance, my daughter has a smaller diffuser than me. Her’s holds a total of 120 ml. Mine on the other hand holds up to 300 ml. I almost never fill it to capacity with water, but it did start me wondering what water amount these blends were based upon.
You need a cool-air diffuser. These diffusers usually require a small amount of distilled water to be added along with essential oils. Note: Cold air diffusers ranges vary, with most around 250 feet. So if you are trying to diffuse your bedroom and living room, most likely you will need two diffusers. This one is my favorite for the money and size/features.