Frequently Asked Questions

Aroma Diffuser Questions

When selecting the right diffuser for your space, it’s important to consider the area size, ceiling height, and air flow. We have devices suitable for smaller spaces, as well as professional-grade diffusers for larger areas. You can set up our diffusers directly or via Bluetooth connection with an app. The placement of our standalone devices is crucial to ensure they work with natural air flow. Our professional-grade diffusers can scent areas up to 12,000 square feet, making them perfect for businesses or large residences.

Cold air atomizing diffusers can distribute high concentrations of fragrance across such large areas without compromising the chemical integrity of the essential oils. Unlike ultrasonic diffusers, these devices produce a very fine mist that leaves no residue and does not require prior dilution with water or other solvents. Most importantly, if you want to experience the purest and most intense fragrance, a cold air atomizing diffuser is your best choice.

Cold air diffusers are waterless and heatless essential oil atomizers that disperse essential oils into the air in nano-sized particles. The diffuser filters the cool air in the space and disperses the essential oils in an ultra-dry mist form. Unlike heated or water-based diffusers, our diffusion technology produces a richer and purer fragrance. Using cold air to diffuse fragrance is the safest and cleanest way to fill a room with scent. The reason behind this is that cool air does not dilute the aromatic oils, does not disperse other unwanted substances into the air, and leaves no residue.

Improves air quality and removes odors.Regulates mood and reduces stress.Enhances daily rituals.Provides respiratory comfort.

Shapes brand memory and enhances recognition.Improves customer experience and emotional management.Effectively addresses hotel space challenges.Creates additional revenue and marketing value.Cost control and sustainability.Health and safety.

Yes, as long as you choose safe essential oils.

Yes, you can adjust the fragrance intensity via Bluetooth or manually.

Our aroma diffusers support customization of logos and outer packaging. If you have additional personalized requirements

The minimum order quantity (MOQ) varies by model. Please contact us for specific order requirements.

Choosing a fragrance machine for the family can not only add a pleasant fragrance to the space, but also bring multi-dimensional practical value

Using aroma diffuser in hotels is not only an “unseen tool” to enhance spatial ambiance but also a “sensory marketing strategy” that elevates guest experiences, shapes brand identity, and optimizes operational efficiency.

Using an aroma diffuser in compact cars is not only a “sensory upgrade tool” to enhance the in-cabin environment but also optimizes driving experience, maintains health, and extends vehicle lifespan.

A two-fluid aroma diffuser is a device that atomizes fragrance by mixing ​compressed air (the first fluid) and fragrance liquid (the second fluid)​. It uses high-speed airflow to break the fragrance liquid into fine particles (typically 5-20 microns), ensuring even diffusion. It provides ​fine misting, no pump wear, and compatibility with high-viscosity fragrance oils.

Smaller particles (e.g., 5 microns) ​stay suspended longer and spread farther, making them ideal for large spaces (e.g., hotel lobbies). Slightly larger particles (e.g., 15 microns) ​settle faster, making them better for targeted fragrance in smaller spaces.

​Turn off the air supply.​​
​Soak the nozzle in pure alcohol for 30 minutes.​​
​Use a fine needle to clear any blockages.

Premium settings: Hotel lobbies, luxury stores 
​Large spaces: Gyms, exhibition halls 
​Special applications: Hospitals , vehicles.

Yes, but note the following:​
Use waterproof models (IP54 or higher).​
Shorten maintenance cycles​ (humidity accelerates fragrance buildup).

Essential Oil Questions

General Questions

Yes, all aromatherapy oils from Grasse Aroma are regulated by the International Fragrance Association (IFRA).

We recommend cleaning your diffuser every 1-2 months or when replacing essential oils using our Grasse Aroma Diffuser Cleaner.

All Grasse Aroma diffusers come with a one-year manufacturer’s warranty.

Our essential oils have a shelf life of two years.

Our essential oils are certified by IFRA (International Fragrance Association) and are safe for pets and children. Please use with confidence.

Business Partnership Questions

For distribution partnership opportunities, kindly send your official request to contact@grassearoma.com with your company profile and market coverage details.

We provide customized aroma diffusers, including logo customization, OEM & ODM services, and bespoke essential oil formulations. For any additional requirements, please don’t hesitate to contact us

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