Only use pure essential oils or aroma oils specifically formulated for cold-air or nebulising diffusion. These oils are free from carrier oils, water, and additives—ensuring they’re the right consistency for your diffuser to operate effectively without clogging.

All of our fragrance oils are phthalate- and paraben-free, and perfectly suited for waterless, heatless diffusion.

NEVER dilue oils with water as this will damage your diffuser and void the warranty

You’re welcome to use other oils, but we always recommend choosing Ascent oils for the best experience. Our diffusers are engineered for pure, waterless, cold-air aroma oils—no fillers, no water, no alcohol. Many third-party oils contain additives that can clog the atomiser, weaken the scent throw, or leave residue inside the device.

Ascent oils are purpose-blended to give you a cleaner diffusion, longer-lasting fragrance, and that beautiful hotel-style aroma your space deserves. Using non-Ascent oils may also void your diffuser warranty if damage occurs.

No, our diffusers use cold-air diffusion technology, producing no heat, smoke, or harmful substances. It's completely safe for families and pets.

Each collection is curated for different moods and occasions. Our Hotel collection offers everyday scents, while specialty collections are designed for specific atmospheres.

Consider the atmosphere you want to create. Citrus notes are energising, florals are calming, and woody scents create warmth and comfort.

Yes, all Ascent diffusers come with a 1-year manufacturer's warranty covering defects and malfunctions.

Orders typically arrive within 3-5 business days.

We recommend giving your diffuser a quick clean every 6-8 weeks, especially if you’re switching between scents. Regular cleaning helps maintain performance and prevents scent mixing or build-up. Check out our specially formulated diffuser cleaning solution