Aromatherapy atomizers are the type of essential oil diffusers that don't use heat or water to disperse essential oil into the air; they are designed to break a liquid into micro droplets using a capillary tube and an air flow.
The basic principle was first described by Dutch-Swiss mathematician Bernoulli in the year 1738, some decades later the Italian physicist Venturi created the first application.
Around 1862 a German physician Bergson used this invention to allow patients with lung illnesses to be treated with vaporized droplets of a liquid medication straight into the lungs. Not long after this application the same principle was used to vaporize perfume. The Bushberry Mist essential oil diffusers use the same Venturi principle to atomize pure liquid essential oil.
Bushberry Mist pure oil diffusers are made from handcrafted glass oil canister with a ceramic or wooden base that have some distinct advantages over the commonly used cheaper ultrasonic diffusers.
The air-pump in the body of the atomizer blows air through the top glass tube, over the suction tube that is placed in the oil reservoir. The mist of 100% pure oil makes the atomizer the most efficient transporter of essential oil as there is no other carrier than the air. This will allow the highest possible concentration of pureessential oil in the air without addition of water; the visual mist production will be much lower than water diffusers and will depend mainly on how ‘light’ the essential oil is and the ambient temperature and humidity.
Because of the utilization of glass; the essential oil will remain in its purest form for longer; the same as it was bottled. Most essential oils will dissolve plastics, for this reason your purchased bottle of essential oil will likely be packed in glass. Most cheap ultrasonic diffusers have a plastic reservoir where the water and the essential oils are mixed. Since the oil is lighter than water, it will float on the surface allowing it to contact the plastic of the reservoir in a concentrated form.
Because atomizers don't use water or heat, they will not change to composition of the essential oil and they will not release impurities that can be found in (tap) water (chlorides, fluorides etc.) Water based ultrasonic diffusers can also become a breeding ground for bacteria and fungi; the energy from the ultrasonic membrane will cause the temperature of the water to rise and create an environment that promotes bacteria growth, particularly as the essential oil has evaporated from the water and the natural anti-bacterial features of the essential oil have dissipated.
There are disadvantages of air driven atomizers as well; in general they are more expensive as they are often made of hand-crafted (glass) components. They can be ‘noisier’ than ultrasonic diffusers because of the air pump; they are generally more fragile because of the glass components.