Grand 300™ Smart Waterless Scent Diffuser

The Grand 300™ uses waterless cold-air diffusion to turn fragrance oil into a fine, dry scent mist. There is no water, no heat and no flame — just consistent, app-controlled fragrance throughout your space.

Unlike standard water diffusers, the Grand 300™ does not dilute fragrance with water or create damp mist. It uses fragrance oil directly, giving a stronger, cleaner and longer-lasting scent experience designed for homes, shops, salons and offices.

Yes. The Grand 300™ is designed for more than bedside or small-room scenting. Use it freestanding for everyday scenting, or connect it to a ducted air system/HVAC for coverage up to 300m² / 3,000 sq ft.

Connect the Grand 300™ to the Nobl Parfums app via Bluetooth to set weekly schedules, adjust scent intensity and choose exactly when your diffuser runs.

Typically 2–3 months. Because our "cold-air" mist is highly concentrated, a short 10–20 second burst every 10 minutes is usually enough to scent a large home.

Yes. Our waterless technology creates a "dry" nano-mist that stays suspended in the air. It leaves no wet residue on floors or furniture and uses no heat or flames, making it much safer than candles or plugins.

While the Grand 300™ is an "open" system, it is designed for cold-air nebulizing oils. For the best performance and to avoid clogging, we recommend Nobl Parfums oils, which are 60% more affordable than other luxury brands.

We offer a 30-day return policy on unused items and a 1-year limited warranty on all hardware. If there's a mechanical fault, we’ll repair or replace it—guaranteed.