1. Introduction
The VEVOR 100ML Scent Air Machine (Model A1-V3.1) is an advanced essential oil diffuser designed to enhance your environment with consistent fragrance. Utilizing cold air diffusion technology, this device atomizes pure essential oils into fine nanoparticles, covering areas up to 1000 square feet without the need for water or heat. It offers smart control via Bluetooth, allowing for personalized scent intensity and scheduling.
This manual provides essential information for the safe and efficient operation of your VEVOR Scent Air Machine, including setup, usage, maintenance, and troubleshooting.

Image 1.1: The VEVOR Scent Air Machine effectively covers large areas up to 1000 sq.ft.
2. Safety Information
- Pure Essential Oils Only: This device is designed exclusively for pure essential oils. Do not use water, alcohol, or diluted oils, as this can damage the unit and void the warranty.
- Child and Pet Safety: The cold air technology ensures the diffusion process is natural and safe for environments with children and pets. However, keep the device and essential oils out of reach of children and pets.
- Ventilation: Ensure adequate ventilation in the area where the diffuser is used.
- Power Source: Use only the specified power sources (USB or compatible batteries). Do not use damaged cables or power adapters.
- Placement: Place the device on a stable, flat surface or securely wall-mount it. Avoid placing it near heat sources, direct sunlight, or in excessively humid environments.
- Disassembly: Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.

Image 2.1: The VEVOR Scent Air Machine operates without water or alcohol, ensuring pure essential oil diffusion.
3. Package Contents
Verify that all items are present in the package:
- 1 x VEVOR Scent Air Machine (Model A1-V3.1)
- 1 x Plastic Lock
- 1 x Nickel-Plated Round Head Cross Screw (M4x8)
- 3 x Green Adhesive Pellets
- 1 x Plastic Bottle Cap
- 2 x Plastic Keys
- 3 x Countersunk Galvanized Cross Self-Tapping Screws (M4x25)
- 1 x Self-Sealing Bag
- 3 x Galvanized Concrete Nails (M5 x 25)
- 1 x User Manual (this document)
- 1 x Adhesive Backing
Note: A power cord (USB) and batteries are not included and must be purchased separately.

Image 3.1: Overview of product dimensions and included accessories.
4. Product Overview
The VEVOR Scent Air Machine features a compact and modern design, suitable for various indoor settings. Key components include:
- Scent Nozzle: Located at the top, where atomized essential oil is released.
- Power Port: For USB power connection.
- Battery Compartment: For optional battery power.
- Control Panel/Indicator: For device status and interaction.

Image 4.1: Front view of the VEVOR Scent Air Machine, showcasing its sleek design.

Image 4.2: Dimensions of the VEVOR Scent Air Machine: 5.8 in (148 mm) L x 2.3 in (58 mm) W x 6.2 in (158 mm) H.
5. Setup
5.1 Installation Options
The VEVOR Scent Air Machine can be used in two ways:
- Freestanding: Place the device on a stable, flat surface such as a table or shelf.
- Wall Mount: Use the provided screws and adhesive backing to securely mount the device to a wall. Ensure the mounting surface is clean and dry before installation.

Image 5.1: The device can be wall-mounted or placed freestanding on a tabletop.
5.2 Powering the Device
The device offers dual power options:
- USB Charging: Connect the device to a USB power source using a compatible USB cable (not included).
- Battery Powered: Insert Lithium Ion batteries (not included) into the battery compartment. Ensure correct polarity.

Image 5.2: The device supports both USB charging and dry battery power.
5.3 Filling with Essential Oil
- Open the device's essential oil compartment.
- Carefully pour pure essential oil into the designated reservoir. Do not overfill. The capacity is 100ML.
- Close the compartment securely.
5.4 Initial Bluetooth Connection
For the first use, connect your smartphone via Bluetooth to synchronize with your local time zone and access full control features.
6. Operating Instructions
6.1 Bluetooth Connection and App Control
The VEVOR Scent Air Machine is controlled via a dedicated smartphone application (available for iOS and Android). Follow these steps to connect:
- Ensure Bluetooth is enabled on your smartphone.
- Download and install the VEVOR Scent Air Machine app from your device's app store.
- Open the app and follow the on-screen instructions to search for and pair with your device.
- When prompted, enter the default password: 8888.
- Once connected, the app allows you to control power, adjust scent levels, and set timer functions.

Image 6.1: Control the device conveniently through Bluetooth on your smartphone.

Image 6.2: The mobile app provides customized settings for power, atomization levels, and timer functions.
6.2 Adjusting Scent Levels
The device offers 10 diffusion levels to customize fragrance concentration. Use the smartphone app to select your desired intensity. Higher levels will diffuse more frequently or for longer durations, consuming essential oil faster.
6.3 Timer Function
Set specific operating schedules using the timer function in the app. The device will continue to operate according to these preset schedules even if the Bluetooth connection is temporarily lost.
7. Maintenance
7.1 Cleaning the Device
Regular cleaning ensures optimal performance and extends the lifespan of your scent air machine.
- Exterior: Wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Essential Oil Reservoir: If changing essential oil types or if residue builds up, carefully remove any remaining oil. You may use a small amount of isopropyl alcohol on a cotton swab to clean the inside of the reservoir and nozzle area, then allow it to air dry completely before refilling.
- Avoid Water: Never immerse the device in water or allow water to enter internal components.
7.2 Essential Oil Replacement
When the essential oil level is low, refill the reservoir with pure essential oil as described in Section 5.3. It is recommended to use the same type of essential oil or clean the reservoir thoroughly before switching to a different scent.
8. Troubleshooting
If you encounter issues with your VEVOR Scent Air Machine, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | No power supply; batteries depleted or incorrectly inserted; USB cable faulty. | Check USB connection or replace batteries. Ensure batteries are inserted with correct polarity. |
| No scent diffusion. | Essential oil reservoir empty; nozzle blocked; incorrect oil type used. | Refill essential oil. Clean the nozzle area. Ensure only pure essential oils are used. |
| Bluetooth connection fails. | Bluetooth off on phone; device out of range; incorrect password; app issue. | Ensure phone Bluetooth is on and device is within range. Re-enter password (default: 8888). Restart app or device. |
| Scent is too weak/strong. | Scent level setting is too low/high. | Adjust the diffusion level via the smartphone app (10 levels available). |
If the problem persists after attempting these solutions, please contact VEVOR customer support for further assistance.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | A1-V3.1 |
| Capacity | 100ML |
| Coverage Area | Up to 1000 sq.ft |
| Atomization Rate | 0.04~0.35 g/h |
| Noise Level | <57db |
| Rated Power | 1.5W |
| Housing Material | Plastic |
| Product Dimensions (L x W x H) | 5.8" x 2.3" x 6.2" (148 x 58 x 158 mm) |
| Net Weight | 1.0 lbs / 0.45 kg |
| Power Source | USB or Battery Powered |
| Batteries Required | Lithium Ion (not included) |
10. Warranty and Support
VEVOR products are designed for durability and performance. For warranty information, product support, or to inquire about replacement parts, please visit the official VEVOR website or contact their customer service department directly. Please have your model number (A1-V3.1) and purchase details ready when contacting support.
For the latest information and support resources, please visit: www.vevor.com





