We understand how important it is to feel the scent throughout your space. The A1500 is designed with a powerful cold diffusion system that can effectively cover up to 2,500 sq ft in open areas.
To ensure best results, we recommend placing the unit at least 3 ft above the floor and away from direct airflow sources like open windows.
Our customers often describe the scent as evenly diffused and subtle yet noticeable, not overpowering.

That’s a great question — and one we designed for. With a 500ml internal reservoir, the A1500 can run up to 90 days on the standard mode, assuming a normal usage pattern of 8-10 hours per day.
This means less refilling, less interruption — and more focus on the atmosphere you love.

Absolutely. The QZD app was created with simplicity in mind — even for first-time users.
You can:
• Customize scent schedules (up to 6 time slots)
• Turn your device on/off remotely
We also provide a step-by-step video guide to walk you through the setup in under 3 minutes. If you'd prefer not to use the app, the machine also supports manual programming.

Not at all. Our patented waterless diffusion system disperses scent in dry, fine mist particles, which means:
• No heat
• No water
• No oil droplets landing on surfaces
It’s safe for furniture, electronics, and perfect for homes with children or pets.

We conducted noise sampling on diffusers in the market, revealing that 89.5% of them have noise issues. Since our diffuser uses dual-fluid technology (which atomizes liquid with high-pressure gas), it may produce slight noise during operation.

Before use, please read the product manual to understand the operation and precautions. Our support team is available 24/7 to address any issues you may have. We will resolve them promptly to ensure smooth usage.