The Aroma One is a compact ultrasonic essential oil diffuser designed by Clearlight to work inside infrared saunas, bedrooms, offices, or anywhere you want aromatherapy. It holds up to 60ml of water, takes 5–7 drops of your chosen essential oil, and converts them into a fine cool mist using ultrasonic high-frequency technology. It runs on either a USB-C cable or its removable rechargeable lithium-ion battery.

Ultrasonic diffusion uses a small vibrating membrane that pulses at a frequency too high for the human ear to detect. When water and essential oil sit on top of that membrane, the vibrations break the liquid into microscopic droplets that rise as a visible cool mist. Because there's no heat involved, the therapeutic compounds in the essential oil aren't degraded — you get the full benefit of the oil dispersed evenly into the air.

Runtime depends on whether you're using it plugged in or on battery power. Plugged into USB-C, the Aroma One runs continuously for approximately 4 hours per 60ml fill. On its internal rechargeable battery, it runs for approximately 2.5 hours. Both runtimes are typical for a full tank — actual runtime varies slightly with room temperature and humidity.

Clearlight recommends 5–7 drops of essential oil per fill, added directly to the 60ml water tank after it's filled with water. Adjust up or down within that range based on personal preference and the strength of the particular oil — some oils (peppermint, eucalyptus) are more potent than others (lavender, citrus). Do not exceed 7 drops per fill. More oil does not produce more aromatherapy benefit and can leave residue in the tank.

Yes — the Aroma One was specifically designed to mount inside Clearlight Infrared Saunas. A wall mount and screws are included in the box, letting you fix the diffuser to the sauna interior so aromatherapy becomes part of every session. Because it runs on battery power, you don't need to worry about running a cable into the cabin. Popular sauna aromatherapy oils include eucalyptus for respiratory support, lavender for relaxation, peppermint for focus, and cedarwood for grounding.

The Aroma One was designed specifically for Clearlight Infrared Saunas, but it will function inside any infrared sauna cabinet that has interior wall space for mounting. That said, Clearlight cannot warranty performance issues caused by use in non-Clearlight saunas. If you own a sauna from another brand, you can absolutely use the Aroma One as a freestanding diffuser on the bench or outside the cabinet.

No — the Aroma One ships with a 55½" USB-C cable, but no wall adapter. The USB-C port accepts any standard 5V / 2A USB-C power adapter, so you can use a phone charger, tablet charger, or laptop power brick you already have around the house. Clearlight made this choice intentionally to reduce electronic waste, since most households already have compatible adapters.

The internal lithium-ion battery provides approximately 2.5 hours of continuous diffusion per full charge. Recharge time depends on the USB-C power source you use — a standard 5V/2A adapter will fully recharge the battery in a couple of hours. The battery is removable, which also makes long-term replacement easy when the cell eventually reaches end of life.

Yes. The battery is removable and replaceable — a deliberate design choice so you're not throwing away the whole diffuser when the battery eventually degrades after years of charge cycles. A dedicated battery user manual and battery MSDS are available on this product page. Contact Sauna Republic for replacement battery sourcing when the time comes.

The Aroma One has two LED indicator states. When it's operating normally, the cyan LED displays a slow breathing pattern — a gentle pulse that fades in and out. When the water tank runs empty, the LED switches to a blinking pattern to signal that it's time for a refill. The LED is soft enough to leave running in a bedroom without disturbing sleep.

Clearlight doesn't specify a required water type, but for best results and longest ultrasonic membrane life, use distilled or filtered water whenever possible. Tap water contains minerals that can build up on the ultrasonic membrane over time and affect performance. If you're on hard well or municipal water, distilled is worth the small extra cost.

Clean the water tank after each use to prevent residue buildup from essential oils — some oils are not water-soluble and can leave a film that affects future sessions or mixes unpleasantly with other oils. Unplug the device before cleaning, empty any remaining water, wipe the tank with a soft damp cloth, and clean the ultrasonic membrane gently per the instructions in the user manual. Do not use harsh detergents or solvents. The full cleaning procedure is in the user manual available on this product page.

Per Clearlight's safeguards, the Aroma One can be used by children 8 years and older with adult supervision and instruction on safe operation. Keep it out of reach of children under 8 and pets. Children should never fill or clean the diffuser without adult supervision, and should never play with the device.

Clearlight's user manual advises that pregnant women, elderly users, young children, and individuals with chronic health conditions may be more sensitive to certain fragrances and should consult a physician before using any aromatherapy device. Essential oil sensitivities vary widely by individual and by oil — what's safe for one person may cause reactions in another. If you're pregnant or have health concerns, talk to your doctor before using the Aroma One.

Stop using the Aroma One immediately, remove yourself from the room, and get fresh air. Empty the water tank and clean it before the next use. If symptoms persist, consult a physician. Some people are sensitive to specific essential oils — if you react to one oil, don't assume all oils will cause problems. Different oils have completely different chemical profiles.

Place it on a firm, flat surface away from rugs, carpets, and finished floors that could be damaged by water or mist exposure. Give it clear space so the mist can flow freely away from electronics or appliances sensitive to moisture. Avoid placing it directly next to laptops, TVs, or speakers. Nightstands, coffee tables, bathroom counters, and sauna benches or walls are all good locations.

The Aroma One runs for approximately 4 hours plugged in before the water tank empties, so it will not run all night on a single fill. When the tank runs empty, the device stops producing mist and the LED switches to a blinking pattern — it does not overheat or damage itself. Many users run it for the first 2–3 hours of sleep as a wind-down ritual, then let it turn off on its own.

Your purchase includes the Aroma One diffuser with its rechargeable lithium-ion battery installed, a 55½" USB-C cable, a wall mount with mounting screws, the product manual, and warranty documentation. Essential oils and a USB-C wall adapter are not included — you'll need to provide those separately.

Clearlight backs the Aroma One with a 1-year limited warranty covering materials and workmanship for the original purchaser. The full warranty terms are available in the user manual on this product page. Contact Sauna Republic for warranty claims or replacement support.

Yes — Sauna Republic includes complimentary shipping on the Clearlight Aroma One to all U.S. addresses. It ships via ground (UPS or FedEx) and typically arrives within 5–7 business days from order confirmation.

HSA and FSA eligibility can be checked at checkout by selecting Truemed.

Please review our return policy for full details. If you have questions about returns or need to discuss a specific situation, a Sauna Republic specialist is available 7 days a week to help.