Frequently asked question

Cold-air diffusion employs a high amount of cold-filtered air, combined with air pressure, to diffuse oils into a dry mist of nanoparticles. This state-of-the-art system guarantees consistent and subtle scenting without the highs and lows associated with other less technologically advanced solutions.

Essential oils are delicate and volatile. When heated, their therapeutic benefits are destroyed. What’s more, scents diffused through heat do not disperse well in large areas. Nor does their scent last long as molecules fall when they come in contact with cool air.

Cold-air diffusion turns essential oils into a dry mist; meaning it does not leave any oil residue in duct work, on furniture, artwork or on equipment. What’s more, when we install our system into your HVAC unit, the point of entry is always after the air handler.

We offer two product lines to provide flexibility:

1) Portable to work in any environment and does not require AC;

2) HVAC units that connect directly to A/C systems.

There’s only one position: Upright. If not, the oil canister within the unit could discharge oil and damage the inner diffuser mechanics.

Your diffuser can be used with the fan or heat settings in the central A/C system. Warm air will give you a slightly stronger fragrance.

No, but the fan must be on for the system to be operational.  During cool weather, turn the fan of your central air conditioner to the ON position (as opposed to AUTO) to ensure the fragrance continues to circulate throughout your home.

None. Simply change the fragrance canister once empty.

Oil service can be arranged. Cost will depend on location and number of units to be changed.

At the recommended settings of eight hours/day the bottles last approximately one month. The exact length of time will depend on the chosen on/off times.

With our state-of-the-art cold-air diffusion technology, there is no residue so it’s safe to use around furniture, equipment, art, pets, etc.

Unoro essential oils are IFRA compliant; meaning they’ve met the highest industry standards. They are made from the finest plant-derived essences and pure essential oils. They have anti-bacterial, anti-viral and anti-fungal properties. They are safe to use around people, pets or plants and are free of carcinogens.

Unoro oils contain pure essential oils and plant essences. DO NOT apply these pure, undiluted oils topically.  Wash any area that’s come in contact with the oil using soap and warm water.

Thoroughly clean the area (including the unit) with rubbing alcohol.

All oils are manufactured in Mexico.

You can order online at, or from your sales representative.

Unoro essential oils are plant-based scents that provide health benefits through natural antibacterial properties, maintained through cold-air diffusion technology.

Aroma oils are a blend of therapeutic-grade essential oils and perfume-quality fragrance oils. They maintain all the therapeutic benefits of essential oils and provide maximum versatility and control of the scenting environment. All aroma oils are hypoallergenic, IFRA compliant and meet the highest safety standards in the industry.