Frequently
Asked Questions
What is a cold-air diffuser?
A cold-air diffuser uses air pressure technology to disperse fragrance oil without water or heat, helping maintain the original character of the scent.
How is a cold-air diffuser different from an ultrasonic diffuser?
Cold-air diffusers use fragrance oil directly without water, while ultrasonic diffusers typically mix water and essential oils to create a mist. Cold-air diffusion is designed for a more concentrated and consistent scent experience.
Which 999Scala diffuser is right for my space?
Maison is designed for residential spaces, Atrium is suitable for larger homes and premium interiors, and Central is designed for large commercial spaces and HVAC integration.
Can I use 999Scala diffusers for hotels and offices?
Yes. 999Scala diffusers are designed for both residential and commercial environments, including hotels, offices, retail spaces and premium interiors.
Do 999Scala diffusers require water?
No. 999Scala cold-air diffusers are waterless and use fragrance oils directly for scent diffusion.
How long does diffuser oil last?
The duration depends on the diffuser model, fragrance intensity, operating hours and space size. Usage can be adjusted based on your scenting requirements.



