1. Introduction
This manual provides comprehensive instructions for the safe and efficient operation, setup, and maintenance of your COOSPIDER 3.8L Reptile Fogger Mister. This device is designed to maintain optimal humidity levels in reptile tanks, terrariums, and vivariums, ensuring a suitable environment for your pets. Please read this manual thoroughly before first use and retain it for future reference.

Figure 1: COOSPIDER 3.8L Reptile Fogger Mister in operation.
2. Product Overview
2.1 Components

Figure 2: Product Accessories List.
- Fogger Body (Base): Contains the ultrasonic atomizer and control knob.
- Water Tank (3.8L/1 Gallon): Transparent reservoir for water.
- Adjustable Hose: Flexible hose for directing mist, adjustable from 1.5 to 6.3 feet.
- Suction Cups (x2): For securing the hose to the terrarium.
- Power Cord: For connecting the unit to an electrical outlet.
2.2 Key Features
- Large Capacity: 3.8L (1 Gallon) water tank for extended operation.
- Dry-Off Protection: Automatically shuts off when water level is low, with an indicator light change from green to red.
- Adjustable Mist Output: Rotary knob allows precise control over mist volume.
- Quiet Operation: Ultrasonic atomization technology ensures low noise levels (below 35dB), suitable for night use.
- Fine Mist: Produces a uniform, fine mist without water accumulation.
- Versatile Application: Recommended for 10-40 gallon single-compartment terrariums, suitable for reptiles, amphibians, and vivariums.

Figure 3: Quiet operation for night use.

Figure 4: Versatile applications for the fogger.
3. Setup Instructions
3.1 Filling the Water Tank
- Unscrew the white cap from the bottom of the water tank.
- Hold the water tank upside down and fill it with clean, distilled water. Avoid overfilling.
- Replace the white cap securely.
- Carefully flip the base over the water tank and snap it into position.
- Flip the entire unit over to its upright position.
Important: Do not handle or relocate the humidifier (or its tank) during operation or with water in the tank to avoid backflow into the base.

Step 1: Unscrew cap and fill.

Step 2: Replace cap and align base.

Step 3: Snap and position.
3.2 Connecting the Hose
- Attach the adjustable hose to the mist outlet on the top of the water tank.
- Route the hose into your terrarium, using the provided suction cups to secure it in place.
- Ensure the hose is positioned to direct mist effectively without creating puddles.
Caution: Do not bend the hose in a U-shape, as this can cause water to accumulate, overflow, and potentially flow back into the base unit, leading to leaks or malfunction.

Figure 5: Proper hose routing to prevent water accumulation and leaks.
4. Operating Instructions
- Plug the power cord into a suitable electrical outlet.
- Locate the power switch on the back of the unit and turn it to the "ON" position.
- Use the rotary knob on the front of the unit to adjust the mist output level. Turn clockwise to increase mist and counter-clockwise to decrease.
- Observe the indicator light:
- Green Light: Indicates normal operation.
- Red Light: Indicates a water shortage. The unit will automatically stop working. Refill the water tank to resume operation.
Note: This humidifier does not have a built-in timing function. For timed operation, an external timer switch (not included) can be used.

Figure 6: Controls and indicator lights.

Figure 7: Easy and safe operation, including optional external controls.
5. Maintenance
- Daily: After each use, dry the hose to prevent water accumulation and potential issues.
- Weekly: Clean the water tank and base unit with a soft cloth and mild detergent. Rinse thoroughly to remove any residue.
- Regularly: Inspect the ultrasonic atomizer for mineral buildup, especially if using tap water. Clean with a soft brush or descaling solution if necessary.
- Always use distilled water to minimize mineral buildup and prolong the life of the unit.
- Ensure the unit is unplugged before performing any cleaning or maintenance.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | Power switch is off; no power; water tank empty. | Ensure the power switch on the back is ON. Check power connection. Refill water tank if the red indicator light is on. |
| No mist or low mist output. | Water tank empty; mist output knob set too low; mineral buildup on atomizer; hose blockage. | Refill water tank. Adjust mist output knob to a higher setting. Clean the ultrasonic atomizer. Check hose for kinks or blockages. |
| Water accumulation or leaks. | Improper hose routing (U-shape); hose not dried after use; tank not seated correctly. | Ensure hose is routed straight or downwards, avoiding U-bends. Dry the hose after each use. Verify the water tank is securely snapped onto the base. |
| Mist escaping from top of unit. | Lid not sealed properly to the mist tube. | Ensure the water tank and its lid are correctly aligned and securely seated on the base, allowing mist to flow only through the hose. |
| Hose spits water occasionally. | Condensation buildup in the hose. | This can occur due to condensation. Position the hose over an area that can tolerate occasional moisture. Regularly dry the hose. |
7. Specifications

Figure 8: Product dimensions and hose length.
- Brand: COOSPIDER
- Model Name: Reptile Fogger
- Model Number: 15hf98-4h287
- Capacity: 3.8 Liters (1 Gallon)
- Operation Mode: Ultrasonic
- Special Feature: Auto Shut Off (Dry-Off Protection)
- Color: Black
- Product Dimensions (D x W x H): 7.48" x 7.48" x 13"
- Item Weight: 2.31 Pounds
- Adjustable Hose Length: Up to 1.9 meters / 6.23 feet
- Power Cord Length: 3.94 feet
- Wattage: 25 watts
- UPC: 656699726389
8. Warranty and Support
- Warranty: This product comes with a 1-year warranty.
- Support: If you encounter any issues with your COOSPIDER Reptile Fogger Mister, please refer to the contact information provided on the product packaging. Our support team aims to respond within 48 hours.