Frequently Asked Questions
1. Does the V-NP3 waterless diffuser require water or heat?
No. The V-NP3 uses waterless nebulizing technology to atomize essential oil directly.
It does not require water or heat, so the oil is not diluted before diffusion.
2. What type of essential oil can be used with the diffuser?
The diffuser is designed for clean essential oils and fragrance oils suitable for
waterless nebulizing diffusers.
- Use oils recommended for direct nebulization.
- Avoid oils diluted with carrier oil.
- Very thick, resinous or impure oils may reduce mist output or block the atomizing nozzle.
- When changing oil suppliers, we recommend testing oil compatibility before bulk use.
3. Which essential oil bottle sizes are compatible?
The current V-NP3 structure is designed to support 5 ml, 10 ml and 110 ml oil bottle
configurations. Bottle-neck dimensions and thread specifications should be confirmed
before placing a bulk order because bottles from different suppliers may use different neck sizes.
4. Can the fragrance intensity be adjusted?
Yes. The V-NP3 provides three intermittent working modes:
- Mode 1: 30 seconds on / 150 seconds off
- Mode 2: 60 seconds on / 120 seconds off
- Mode 3: 120 seconds on / 60 seconds off
A shorter pause creates stronger fragrance output, while a longer pause provides a lighter scent level.
5. What timer settings are available?
The diffuser provides 1-hour, 2-hour and 3-hour timer settings. It also has an automatic
shut-off function to help prevent unnecessary continuous operation.
6. How long can the diffuser operate after charging?
The V-NP3 has a 2000 mAh rechargeable battery. Under intermittent operation, the estimated
working time is approximately 30–50 hours, depending on the selected mode, oil viscosity,
ambient temperature and frequency of use.
7. How long does it take to charge?
A full charge takes approximately three hours when using a suitable DC 5V / 1A power source.
Charging time may vary depending on the charging adapter and remaining battery level.
8. Can the diffuser be used while charging?
This depends on the final battery and PCB configuration selected for the order. For standard
operation and better battery maintenance, we recommend fully charging the device before
cordless use. Please confirm pass-through charging requirements before sample or bulk production.
9. Where should the diffuser be placed inside a vehicle?
Place the diffuser upright on a stable, flat surface where it will not interfere with driving.
Suitable positions may include:
- A stable cup-holder position, if the dimensions are compatible
- The center console
- A secure storage compartment with sufficient ventilation
Do not place the device near pedals, airbags, gear controls or any location where it may move
during sudden braking.
10. Will the diffuser leave water droplets or wet residue inside the car?
The V-NP3 does not use water. It produces a fine oil mist through waterless nebulization,
so it does not create the visible water vapor associated with ultrasonic diffusers. Correct
oil selection, upright placement and suitable output settings are still important to avoid
excessive local oil concentration.
11. How often does the essential oil need to be replaced?
Oil consumption depends on the selected working mode, mist output, oil viscosity and daily
operating time. The specified mist output is approximately 0.3–1.2 ml per hour while actively
atomizing. For the best estimate, test the selected oil and working mode under the intended
usage conditions.
12. How should the atomizing nozzle be cleaned?
Cleaning is recommended when changing fragrances or when mist output becomes weaker.
- Turn off the device and remove the oil bottle.
- Wipe away visible oil from the bottle connection and nozzle area.
- Use a suitable cleaning solution recommended for nebulizing diffusers.
- Run a short cleaning cycle if permitted by the final product manual.
- Allow the components to dry before installing a new oil bottle.
Do not immerse the complete device in water.
13. Why is the diffuser producing little or no mist?
Please check the following:
- The battery has sufficient charge.
- The oil bottle is installed correctly.
- The oil level is not too low.
- The oil is not excessively thick or diluted with carrier oil.
- The atomizing nozzle is clean and not blocked.
- The selected working mode is operating within its pause cycle.
14. Is the diffuser suitable for use around children and pets?
The device uses waterless and heat-free diffusion, but essential-oil suitability depends on
the specific oil, concentration, exposure time and the people or animals in the environment.
Always follow the oil supplier’s usage instructions and avoid placing the diffuser where
children or pets can touch or overturn it.
Do not make an absolute “safe for all children and pets” claim unless the selected oil and
finished product have the necessary supporting safety documentation.
15. Can the diffuser be left inside a parked vehicle?
We do not recommend leaving the diffuser or essential oil bottle inside a parked vehicle
under extreme heat, direct sunlight or freezing conditions. High temperatures may affect
the battery, oil quality, seals and plastic components.
16. Can the color, logo and packaging be customized?
Yes. OEM/ODM options may include product color, logo printing, gift-box design, user manual,
accessory configuration and oil-bottle setup. Available customization depends on the order
quantity and project requirements.
17. What is the MOQ for OEM or private label orders?
The MOQ depends on the customization level. Standard product orders, logo printing, custom
colors and fully customized packaging may have different minimum quantities. Please provide
the target quantity and customization requirements for an accurate evaluation.
18. Can we order a sample before bulk production?
Yes. Samples can be arranged for product testing and oil-compatibility evaluation before bulk
production. We recommend testing the intended essential oil, bottle size, working mode and
charging setup during the sample stage.
