1. Introduction
Thank you for choosing the Okaysou Cayman 320 Air Purifier. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your air purifier. Please read this manual thoroughly before use and retain it for future reference.
The Okaysou Cayman 320 (Model: Cayman 608) is designed to improve indoor air quality by removing 99.97% of airborne particles as small as 0.1-0.3 microns, including smoke, dust, pollen, pet dander, and odors. It features a powerful DC filtration system and operates quietly, making it suitable for various room sizes.

Image: The Okaysou Cayman 320 Air Purifier in a living room, highlighting its sleek design and effective air purification.
2. Safety Instructions
To reduce the risk of fire, electric shock, or injury, please observe the following safety precautions:
- Always unplug the air purifier before moving, cleaning, or performing any maintenance.
- Do not operate the air purifier if the power cord or plug is damaged.
- Keep the air purifier away from water or wet areas. Do not immerse it in water or other liquids.
- Do not block air inlets or outlets. Ensure at least 6 inches (15 cm) of clearance from walls and furniture.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Do not use the air purifier in environments with high temperatures or humidity.
- Use only genuine Okaysou replacement filters.
- Do not attempt to repair or modify the unit yourself. Contact customer support for assistance.
3. Product Overview
Components
- Air Purifier Unit (Main Body)
- H13 True HEPA Filter (Pre-installed)
- Power Cord
Control Panel

Image: The intuitive touch control panel located on the top of the air purifier.
- Power Button: Turns the unit on/off.
- Fan Speed Button: Cycles through fan speed settings (Low, Medium, High, Sleep).
- Timer Button: Sets the operating timer (2H, 4H, 8H).
- Filter Reset Button: Indicates when to replace the filter and resets the filter life counter.
- Child Lock Button: Locks the control panel to prevent accidental changes.
4. Setup
Follow these steps to set up your Okaysou Cayman 320 Air Purifier:
- Unpack the Unit: Carefully remove the air purifier from its packaging.
- Remove Filter Packaging: Before first use, the filter inside the unit is wrapped in a plastic bag for protection. Unscrew the bottom cover of the air purifier, remove the filter, unwrap the plastic packaging, and place the filter back into the unit. Securely reattach the bottom cover.
- Placement: Place the air purifier on a flat, stable surface. Ensure there is at least 6 inches (15 cm) of clear space around all sides for optimal airflow.
- Connect Power: Plug the power cord into a standard electrical outlet.

Image: Illustration of the advanced 3-stage H13 True HEPA filter system. Ensure to remove all plastic packaging from the filter before operation.
5. Operating Instructions
Power On/Off
- Press the Power Button to turn the air purifier on or off.
Adjusting Fan Speed
- Press the Fan Speed Button repeatedly to cycle through the fan speed settings: Low, Medium, High, and Sleep mode.
- Sleep Mode: In sleep mode, the fan operates at its lowest speed (22dB) and all indicator lights dim or turn off to ensure a peaceful environment.

Image: The air purifier operating in sleep mode, demonstrating its ultra-quiet performance at 22dB.
Setting the Timer
- Press the Timer Button to set the operating time for 2, 4, or 8 hours. The unit will automatically turn off once the set time has elapsed.
Child Lock Function
- Press and hold the Child Lock Button for 3 seconds to activate or deactivate the child lock. When activated, all other buttons on the control panel will be unresponsive.

Image: Visual representation of the air purifier's effective air circulation and coverage for various room sizes.
6. Maintenance
Filter Replacement
The filter replacement indicator light will illuminate when it's time to replace the filter (approximately every 6-8 months, depending on usage and air quality).
- Unplug the air purifier from the power outlet.
- Turn the unit upside down and unscrew the bottom cover.
- Remove the old filter.
- Insert a new Okaysou H13 True HEPA replacement filter (ensure all packaging is removed from the new filter).
- Replace the bottom cover and screw it securely.
- Plug in the air purifier.
- Press and hold the Filter Reset Button for 3 seconds until the indicator light turns off. This resets the filter life counter.
Cleaning the Unit
- Wipe the exterior of the air purifier with a soft, dry cloth.
- Do not use abrasive cleaners or solvents.
- The pre-filter layer of the composite filter can be gently vacuumed to remove large dust particles, but the HEPA and activated carbon layers are not washable.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | Power cord not securely plugged in. No power from outlet. Filter not installed correctly or plastic packaging not removed. | Ensure power cord is firmly plugged into a working outlet. Check circuit breaker. Reinstall filter, ensuring plastic packaging is removed. |
| Airflow is weak. | Filter is dirty or clogged. Air inlets/outlets are blocked. | Replace the filter. Ensure nothing is obstructing the air inlets or outlets. |
| Unusual noise. | Filter not seated properly. Foreign object inside the unit. | Reinstall the filter. Unplug and check for any foreign objects. |
| Odor coming from unit. | New filter odor (temporary). Filter is saturated with odors. | Operate the unit in a well-ventilated area for a few hours. Replace the filter. |
| Filter replacement light remains on after filter change. | Filter life counter not reset. | Press and hold the Filter Reset Button for 3 seconds. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | Cayman 608 |
| Product Dimensions | 6.97 x 6.97 x 10.43 inches |
| Weight | 7.15 Pounds |
| Brand | Okaysou |
| Noise Level | 22 dB (Sleep Mode) |
| Controller Type | Button Control |
| Wattage | 25 watts |
| Filter Type | H13 True HEPA (3-stage filtration) |
| Coverage Area | Up to 600 SqFt (2x air changes per hour) |

Image: Certifications and CADR (Clean Air Delivery Rate) test results, indicating performance for various pollutants.
9. Warranty and Support
Okaysou provides a standard warranty for its products. Please refer to the warranty card included with your purchase for specific terms and conditions. For any product-related inquiries, technical support, or to purchase replacement filters, please contact Okaysou customer service:
- Website: www.okaysou.com
- Email: Refer to your warranty card or product packaging for the most current email address.
- Phone: Refer to your warranty card or product packaging for the most current phone number.
Please have your model number (Cayman 608) and purchase information ready when contacting support.




