Scent diffusers release fragrance oils into the air. The mechanism varies depending on the type of diffuser, each with advantages and disadvantages. Reed diffusers work by absorbing fragrance oils through reeds, which gradually release the scent into the air. These require no electricity, heat, or water. They are low-maintenance and safe for homes with children or pets. They provide consistent fragrance for weeks or even months, and their stylish containers often double as decorative pieces. Ultrasonic diffusers, among the most popular, use ultrasonic vibrations to create a fine mist of water and essential oils. This mist not only disperses the scent evenly but also adds moisture to the air. However, these diffusers require water and regular cleaning to maintain efficiency. For those seeking a more concentrated and pure scent, nebulizing diffusers are a powerful option. These devices use an atomizer to disperse essential oils in their undiluted form, providing a potent aroma without the need for water or heat. Evaporative diffusers rely on a fan to circulate air over oil-soaked filters, allowing the scent to diffuse quickly into the space. While effective for small areas, the scent may not last as long as with other methods. Heat diffusers, on the other hand, use a heating element like a candle or electric plate to evaporate oils into the air. While they create a cozy ambiance, high temperatures can alter the oil's chemical composition. Heat diffusers also require careful supervision to prevent safety risks.