After researching the different types of oil diffusion (fan, heat, water vapor, nebulizing), I’ve learned that nebulizing (aka atomizing) is absolutely the best way to provide both aroma and 100% therapeutic healing value with essential oils. It does not alter the chemical composition of the oils as with heat and water. I love Diffuser World’s Aroma-Ace atomizing diffuser because it breaks down essential oil molecules (without separation of the mixture) with a cold air jet technology, and turns the oil into a micro fine vapor that floats through the air for up to an hour with particle size small enough for the lungs and body to absorb quickly. Diffuser World is the only manufacturer that uses kind of technology, and they build them in Utah! They have great customer service too. I became an affiliate so I’m passing on my coupon code to you. DiffuserWorld.com (Save 5% with PROSAVE5)