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Ultrasonic Essential Oils Diffuser (550ml)


  • Ideal for living room, bed room, study room, meeting rooms, etc; it's an excellent aromatherapy diffuser for yoga & meditation routines too
  • Utilises ultrasonic waves to instantly vaporise the essential oils and water to produces steady, cool, soft mist
  • Heatless, quiet and doubles up as a tiny humidifier
  • 7 ambient LED light modes in 2 different intensities allow for customising the fit of this diffuser as per your preference/visual ambience of your home or office
  • Contains large water tank with 550ml capacity with auto shut-off feature when water runs out
  • Easy to operate, clean and maintain; provides up to 8 hours of continuous run time

Operating Instructions

Getting started

  1. Place the aroma diffuser on a flat surface closer to a plug point.
  2. Connect the power cord to the DC jack at the bottom of the main diffuser unit.
  3. Use the measuring cup provided to add water to the diffuser; use room temperature water.
  4. Add about 3 to 5 drops of 100% pure essential oils for every 100ml (3.3 fl.oz) of water. You may need to increase/decrease the number of drops depending on the size of the room and where your diffuser is kept. For instance, you'd probably need less number of drops for a smaller or less ventilated room. Since the intensity of scents are such a personal preference, we recommend that you start with less and work your way up as needed.
  5. Place the cover of the diffuser on the main unit and rotate the cover to adjust the position/direction of the diffuser spray outlet
  6. Plug in the AC adaptor to the power socket and turn on the power

Diffuser Controls

  1. Press the MIST button to start the diffuser at a default duration mode of 1 hour (1H mode)
  2. Pressing the MIST button again lets you change the modes. There are several timer modes available - 1H, 3H, 6H, ON (no time set), OFF.
  3. If the LIGHT button is not pressed, the LED lights will auto rotate. You may press the LIGHT button to pick the desired LED light option.
  4. If the diffuser runs out of water, it will automatically switch off.


We recommend regularly cleaning the diffuser, once every 8-10 usages or 3-5 days

  1. Unplug the power cord from the diffuser and remove the cover
  2. Pour out any remaining water from the diffuser tank
  3. Use a mild detergent to gently clean the diffuser’s main unit; do not use any acid or enzyme detergent
  4. Avoid water flow into the air outlet
  5. Use a clean, dry cloth to wipe and dry the diffuser unit

In the event when the aroma diffuser is knocked over or tipped during use, follow the instructions below before reuse -

  1. Turn power off and disconnect the power cord.
  2. Remove the cover of the diffuser and slowly empty the water from the diffuser tank.
  3. Shake the unit gently to drain the water completely
  4. Use a clean, dry cloth to wipe
  5. Naturally air dry the diffuser unit for a few hours until it is fully dry

Safety Instructions

  • Always keep the diffuser on a flat surface. Do not place it on carpets, duvets or any unstable area.
  • Do not switch on the power when the tank is empty.
  • Do not touch the ultrasonic vibration plate.
  • Do not fill water beyond the max level (upper ring) in the diffuser tank.
  • Do not add hot water or sparkling water, use only room temperature water from the tap.
  • Do not add water while the diffuser is on. Always turn off power before you add water to the diffuser tank.
  • Do not use the diffuser continuously beyond 8 hours. After 8 hours of continuous usage, wait for 60 minutes before restarting in order to avoid any damage to the ultrasonic plate.
  • Only use 100% pure essential oils and do not use synthetic fragrance oils, essential oils that are mixed with carrier oils, massage oils, etc.
  • Do not place the diffuser under furniture, clothing, etc and ensure no obstruction to the mist outlet.
  • For hygienic reasons, after every use, pour away the remaining water from the diffuser tank and wipe the main unit with a clean, dry cloth.
  • This ultrasonic diffuser is not to be used as a medical inhaler or vapouriser.
  • Keep away from direct sunlight, heat sources, air conditioners and electronic equipments.
  • If smoke or burning smell detected, turn off power and unplug immediately.
  • Keep out of reach of children and pets.

What's in the Box

  • 1 unit of Iryasa Ultrasonic Essential Oil Diffuser
  • 1 AC adaptor with power cord (Singapore plug)
  • 1 measuring cup
  • 1 information booklet
Finish: Light Wood Grain
Design: Classic

Ultrasonic Essential Oils Diffuser (550ml) Reviews

Dilution Guide

Most websites/blogs mention about diluting essential oils before topical application. While this is correct, it is not sufficient!

Use the guide below to get started on your DIY blending journey.

Interpreting the charts

Step 1: As per age group, please take note of the recommended and maximum dilution percentages.

Step 2: Based on the amount of carrier oil, you can find the corresponding number of essential oil drops to be used to achieve the dilution you require e.g., for 1% dilution in 30ml of carrier oil, use 8 drops of same/different essential oils.


Always perform a 24 hour period patch test at the recommended dilution levels or lesser, as per the age group to check for any allergic reaction or skin sensitivities.

While the dilution percentages work for most of our essential oils, we strongly recommend that you read the safety precautions listed for each oil before you craft the blend.

Iryasa Dilution Guide for blending essential oils and carrier oils

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