Viruserv VF-4A-FOG
Viruserv VF Nimbus Sanitizing Fogger Machine
User Manual
Product Overview
The Viruserv VF Nimbus quadruple-atomizer disinfectant fogger machine is designed to safely and evenly sanitize spaces up to 750 square feet. This device helps apply disinfectant on both vertical and horizontal surfaces, and can also assist in eliminating odors. It is engineered for ease of use and efficient operation in various environments.

Image: Front view of the Viruserv VF Nimbus Sanitizing Fogger Machine, showcasing its sleek design and the fog output from the top.
Setup and Assembly
Before operating your VF Nimbus fogger, please follow these steps for proper setup and assembly.
- Unpacking: Carefully remove all components from the packaging. Ensure all parts are present: the main unit, extension tube, and diffuser.
- Component Identification: Familiarize yourself with the different parts of the fogger. Refer to the diagram below for visual identification.
- Assemble Extension Tube and Diffuser: Insert the extension tube into the designated opening on top of the main unit. Then, attach the diffuser securely to the top of the extension tube.
- Filling the Tank: The VF Nimbus is designed for use with hypochlorous acid (HOCl) tablets only. Open the tank cover and fill the tank with the appropriate solution prepared from HOCl tablets. Do not overfill.
- Placement: Position the fogger on a stable, level surface in the area you intend to sanitize. Consider the coverage area of 750 square feet when choosing a location. The unit is equipped with swivel wheels for easy repositioning.

Image: Labeled diagram of the VF Nimbus fogger, highlighting key components such as the diffuser, extension tube, display screen, power and control buttons, and swivel wheels.

Image: Side view of the VF Nimbus fogger with dimensions indicated: approximately 43.3 inches in height and 11.4 inches in both width and depth.
Operating Instructions
The VF Nimbus is designed for straightforward operation. Follow these steps to begin sanitizing your space.
- Power On: Plug the fogger into a suitable power outlet. Press the power button on the control panel to turn the unit on.
- LED Display: The integrated LED digital panel displays important information including temperature, humidity level, and current operating level.
- Timer Mode: Utilize the timer function to set the VF Nimbus to run for a desired duration, from 1 hour up to 12 hours of continuous operation. This feature helps maintain a consistently sanitized environment.
- Sleep Mode: If desired, activate sleep mode to turn off the LED display while the unit continues to operate.
- Monitoring: The display also provides visual cues regarding the disinfectant level in the tank and changes in ambient temperature and humidity.
With a six-gallon tank capacity, the unit offers over 28 hours of operating time at a consumption rate of 27 ounces per hour, ensuring extensive coverage for areas up to 750 square feet.

Image: Infographic detailing the operational capabilities of the VF Nimbus, including its 750 sq ft coverage area, 27 oz/hr consumption rate, 28.75 hours of tank run time, and 6-gallon tank capacity.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your Viruserv VF Nimbus fogger.
- Tank and Atomizer Cleaning: To prevent build-up and maintain efficiency, frequently rinse the water tank and atomizer with lukewarm water.
- Disinfectant Type: Remember, this fogger is designed for use exclusively with hypochlorous acid (HOCl) tablets. Using other solutions may damage the unit and void the warranty.
Troubleshooting
If you encounter issues with your VF Nimbus fogger, please refer to the following common troubleshooting tips:
- Unit Not Powering On:
- Ensure the power cord is securely plugged into both the unit and a working electrical outlet.
- Check if the power button has been pressed firmly.
- Low Fog Output:
- Verify that the tank contains sufficient disinfectant solution.
- Ensure the atomizer is clean and free from any build-up. Perform the recommended rinsing procedure.
- Confirm that only HOCl solution is being used.
- Unusual Noises:
- Check for any obstructions around the air intake or output vents.
- Ensure the unit is placed on a stable, level surface.
If these steps do not resolve the issue, please contact Viruserv customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | VF-4A-FOG |
| Manufacturer | Viruserv |
| Coverage Area | Up to 750 sq ft |
| Atomizer Type | Quadruple Atomizer |
| Tank Capacity | 6 Gallons |
| Consumption Rate | 27 Fluid Ounces per hour |
| Operating Time (Max) | Over 28 hours |
| Product Dimensions (Approx.) | 43.3 inches (Height) x 11.4 inches (Width) x 11.4 inches (Depth) |
| Package Dimensions (Approx.) | 75.44 x 37.34 x 32.26 cm |
| Item Weight (Approx.) | 6.87 kg (15.15 lbs) |
| Recommended Disinfectant | Hypochlorous Acid (HOCl) tablets only |
| UPC | 745687410444 |
Warranty Information
The Viruserv VF Nimbus Sanitizing Fogger Machine comes with a limited manufacturer's warranty. For specific details regarding the warranty period, coverage, and terms and conditions, please refer to the warranty card included with your product packaging or visit the official Viruserv website. Keep your purchase receipt as proof of purchase for any warranty claims.
Customer Support
For technical assistance, troubleshooting beyond this manual, or inquiries regarding your Viruserv VF Nimbus fogger, please contact Viruserv customer support. You can typically find contact information, including phone numbers and email addresses, on the official Viruserv website or within your product documentation.
Please note: Always refer to the latest information provided by the manufacturer for the most accurate and up-to-date support details.
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