Scent Horizon HVAC Diffuser
Scent Horizon HVAC Diffuser scents a whole space without water, heat or dilution. Covers areas up to 12000m³, waterless cold-air diffusion system.
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Luxury Hotel Fragrances
Cold-Air Diffusion
Hand Poured in Australia
Safe Around Kids & Pets
IFRA Compliant Fragrance Oils
Why choose Ascent
Luxury Hotel Fragrance
Recreated from the scents of the world’s finest hotels.
Waterless Cold-Air Diffusion
No heat, no water, no dilution, just pure fragrance.
Hand-Poured in Australia
IFRA-compliant, vegan, and safe around kids and pets.
21-Day Money-Back Guarantee
On all diffusers, backed by a 1-year warranty.
HVAC scenting for large commercial sites
The Scent Horizon is a commercial HVAC diffuser using waterless cold-air diffusion through a cartridge format. Bluetooth control covers three timer and intensity settings, so scent can be managed rather than guessed at.
For sites needing up to 12,000 m³
Built for high-traffic zones where consistent coverage matters more than a single room. It connects to commercial AC systems and measures 425 mm wide by 412 mm high.
How it runs
Waterless cold-air diffusion, so there is no heat and no dilution. Fill the bottle, set your intensity and schedule, and leave it. Give any new setup a day before you judge the strength, as scent builds in a room over the first few hours.
Questions & Answers
Have more questions? Don't hesitate to email us:
What size space is it designed for?
This is our large-format scenting range — built for open-plan homes, offices, retail spaces, gyms and hospitality venues. The exact coverage for this model is listed in the specifications on this page.
How does it disperse fragrance?
Cold-air diffusion. The unit converts fragrance oil into an ultra-fine, dry mist — no water, no heat — and distributes it evenly through the space, so the scent stays consistent rather than fading in and out.
Is it difficult to set up?
No — setup is straightforward and each unit ships with clear instructions. For commercial installations, our team is happy to advise on placement, scheduling and intensity. Reach out at hello@ascentcollection.com.au.
Which oils should I use?
Ascent Collection fragrance oils — they're formulated to the correct viscosity for consistent scenting, reliable performance and long-term durability. How quickly you'll go through a bottle depends on your intensity setting and operating hours.
What warranty and support do I get?
All Ascent Collection diffusers are covered by a 1-year manufacturer's warranty, backed by our Australian, family-run support team. If anything isn't right, we'll sort it.
Complete the ritual
Pairs well with
50ml fragrance oils, sized to run in your diffuser for weeks. Add one to any diffuser order and save 25% on the oil — applied automatically at checkout.
More pairings coming soon.