Mist is the suspension of liquid droplets formed when a finely divided liquid is suspended in the air, with a size ranging from 0.01 to 100 μm
. It can be created by various methods, such as ultrasonic mist generators or diffusers. Mist can be both positive and negative. For example, in the case of an essential oil mist diffuser, the mist is designed to be safe and not pose a significant risk to human health when used appropriately and according to instructions
. However, exposure to oil mists may cause nausea and eye irritation
. The ingredients or materials in a mist can vary depending on the source of the mist, such as essential oils in a diffuser or solvent-soluble substances in an ultrasonic mist generator
