How does an ultrasonic diffuser work?

Ultrasonic diffusers use a ceramic plate vibrating at ultrasonic frequency to break water and fragrance oil into a fine, cool mist. This mist carries the scent into the air without heat, preserving the oil's scent profile. Simply fill the tank with water, add 5-7 drops of fragrance oil, and turn it on.

What is a waterless diffuser and how is it different?

A waterless diffuser (nebulizer) atomises pure fragrance oil into a dry micro-vapour without water. The scent is stronger and more true-to-note since there is no dilution. Waterless diffusers cover larger areas (800+ sq ft), require no cleaning, and have zero mould risk. They use more oil per session but deliver a premium scent experience.

How do I clean my ultrasonic diffuser?

Wipe the water tank dry after every few uses. For a deep clean, fill the tank with clean water and a teaspoon of white vinegar, run for 5 minutes, then drain and wipe dry. This prevents mineral buildup and old oil residue. Use RO or distilled water to avoid mineral deposits, especially in hard-water areas like Delhi.

Can I use any fragrance oil in Azhara diffusers?

Azhara diffusers are designed for use with Azhara fragrance oils and standard water-soluble fragrance oils. Avoid thick carrier oils, perfumes, or alcohol-based fragrances as they can damage the ultrasonic plate. Essential oils work well too.

Is it safe to run the diffuser overnight?

Yes. All Azhara diffusers feature auto-shutoff that turns the device off when the water level is low. For overnight use, we recommend intermittent mist mode - it cycles the mist on and off, which is gentler on the senses and makes your oil last longer.

What size room can this diffuser cover?

Ultrasonic diffusers like the Aurea cover approximately 200-300 sq ft - ideal for a standard Indian bedroom or home office. Waterless diffusers like the Ether and Stelo cover 500-800+ sq ft, suitable for living-dining areas in 2-3 BHK apartments.

Does Azhara offer free shipping on diffusers?

Yes, all diffuser orders qualify for free shipping across India as they exceed the Rs 2,500 threshold. Delivery takes 3-7 working days via insured, trackable service.

Azhara Stelo XL - Tower Waterless Diffuser

Name: Azhara Stelo XL - Tower Waterless Diffuser
Brand: Azhara
SKU: 8412331770042

New

Rs. 27,499.00

Rs. 32,560.00

Only 3 left in stock

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Description +

The Azhara Stelo XL is a floor-standing scent tower machined in metal — commercial-grade waterless diffusion built to perfume lobbies, lounges, large homes and retail spaces. Cold-air atomisation t...

The Azhara Stelo XL is a floor-standing scent tower machined in metal — commercial-grade waterless diffusion built to perfume lobbies, lounges, large homes and retail spaces. Cold-air atomisation turns pure fragrance oil into an ultra-fine dry mist, covering 2,000–3,000 m³ with fan-assisted throw. No water. No heat. No residue.

Its 800 mL reservoir keeps it running for weeks. Drive it from the app or the built-in touch controls, schedule scenting around your hours, and let the all-metal column stand as quietly as furniture — under 42 dB. Floor-stand it as a statement piece or integrate it with HVAC for invisible distribution.

Why Stelo XL

Commercial coverage: 2,000–3,000 m³ with fan-assisted diffusion
All-metal tower build: a 606 mm brushed column that belongs in the room
True waterless cold-air diffusion: no water, no heat, no residue
800 mL reservoir: weeks of runtime between refills
App + touch control: schedules, intensity, on/off
Quiet at scale: under 42 dB
Flexible installation: freestanding or HVAC integration

Specifications

Coverage: 2,000–3,000 m³ (with fan)
Oil capacity: 800 mL
Size: 185 × 185 × 606 mm
Weight: 3 kg
Material: metal · Silver/Black
Power: DC 12V · 14W
Noise: <42 dB
Control: app + buttons
Installation: freestanding / HVAC

Pair with any Azhara fragrance oil — every bottle in our library is formulated for waterless diffusion.

Details & Care +

Content about materials, composition, and care instructions.

Shipping & Returns +

We dispatch orders on the SAME BUSINESS DAY if ordered before 5PM, rest are dispatched the next day. Shipping is free on purchases over ₹2,000; And Express Shipping is free for all prepaid orders. Orders below pay a flat ₹200 shipping fee. Delivery across India arrives in 2–7 working days via insured, trackable service. You’ll get an email tracking link. Currently, we ship only within India. No international shipping yet. COD is available at an additional fee of ₹100.