CSI Ultrasonic Diffusion Concentrate Base™ - Works with Fragrance Oils + Essential Oils

Professional Water-Soluble High Diffusion Fragrance Base

If you’ve ever tried using normal fragrance oils in an ultrasonic diffuser, you’ve probably noticed problems — oil floating on water, weak scent diffusion, foam formation, or poor mist performance.

The CSI Ultrasonic Diffusion Concentrate Base™ is engineered specifically to solve these challenges.

This is a professional-grade solubilising base designed to help fragrance oils disperse properly in water and release scent efficiently through ultrasonic mist.

Why This Base is Different

Unlike heavy diffuser bases or simple solvent blends, this system is built with a balanced volatility–solubilisation architecture that supports strong scent diffusion without choking ultrasonic plates.

1. High volatility for faster scent bloom
2. Low foam behaviour for better mist performance
3. Optimised solubiliser ratio for stable dispersion
4. Compatible with a wide range of fragrance profiles
5. Suitable for both beginners and professional makers

This makes it ideal for creating ultrasonic diffuser oils that feel clean, breathable, and effective.

Recommended Usage

To create an ultrasonic diffuser concentrate:

Add 20–25% fragrance oil into this base

Mix thoroughly and allow to rest for 2-5 days.

Lower fragrance loading may be used for wellness or spa-style subtle scenting.

Performance Characteristics

Faster scent perception compared to heavy oil systems

Minimal surface oil separation when properly formulated

Smooth evaporation profile

Suitable for citrus, floral, green, marine and light woody fragrances

Very heavy gourmand or resinous fragrances may require additional testing.

Ideal Applications

1. Ultrasonic diffuser oil concentrates
2. Room ambience scent systems
3. Spa or wellness scenting products
4. Professional fragrance formulation projects
5. Candle and diffuser makers expanding into ultrasonic formats

This balanced system enables effective fragrance dispersion while maintaining mist performance.

Who This is For

Candle makers and fragrance formulators

Workshop participants and DIY enthusiasts

Small brands launching ultrasonic diffuser oils

Professionals seeking a reliable diffusion base

How To Use Humidifier Aroma Concentrate

Using your humidifier aroma concentrate correctly helps you get the best fragrance experience while keeping the humidifier safe and clean.

Step 1 — Fill the Humidifier Tank with Water

Open the humidifier tank and fill it with clean, room-temperature water up to the recommended level.
Do not overfill.

Step 2 — Add Aroma Concentrate (Base + Fragrance Oil/ Essential Oil)

Add 2–4 ml of Humidifier Aroma Concentrate for every 100 ml of water.

For a light, spa-like scent → use 2 ml

For a more noticeable room fragrance → use 3–4 ml

Always start with a lower amount and increase gradually based on your preference and room size.

Step 3 — Close and Start the Humidifier

Close the tank properly, switch on the humidifier, and allow the fine mist to disperse the fragrance gently into the air.

Within a few minutes, the room will begin to feel fresher, calmer, and lightly scented.

Step 4 — Adjust Based on Room Size

Small bedrooms or workspaces may require less concentrate.

Larger rooms or open spaces may need slightly higher dosage.

Avoid using excessive concentrate, as very high fragrance levels can make the air feel heavy.

Step 5 — Use for Limited Duration

For best comfort, run the humidifier with fragrance for 30–60 minutes at a time, especially in closed or air-conditioned rooms.

Step 6 — Clean the Humidifier Regularly

To maintain performance and hygiene:

Empty remaining water after use

Rinse the tank with fresh water

Clean thoroughly every few days to prevent residue buildup

Regular cleaning ensures smooth mist flow and consistent fragrance diffusion.

Pro Tip

For the most luxurious room experience, place the humidifier at table height and allow gentle air circulation (fan or AC airflow). This helps the fragrance disperse more evenly across the space.