1. Introduction
Thank you for choosing the OSTBA 2.5QT Air Fryer. This appliance is designed to provide a healthier way to cook your favorite foods, utilizing 3D 720° Rapid Air Circulation technology for crispy results with significantly less oil. Its compact design makes it ideal for smaller kitchens, apartments, dorms, or RVs. Please read this manual thoroughly before use to ensure safe and optimal operation.

Image: The OSTBA 2.5QT Air Fryer, highlighting its suitability for 1-2 people.
Video: Official product overview showcasing the OSTBA 2.5QT Air Fryer's features and benefits for healthy cooking.
2. Important Safety Instructions
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following:
- Read all instructions before using the appliance.
- Do not touch hot surfaces. Use handles or knobs.
- To protect against electric shock, do not immerse cord, plugs, or housing in water or other liquid.
- Close supervision is necessary when any appliance is used by or near children.
- Unplug from outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts.
- Do not operate any appliance with a damaged cord or plug or after the appliance malfunctions or has been damaged in any manner.
- The use of accessory attachments not recommended by the appliance manufacturer may cause injuries.
- Do not use outdoors.
- Do not let cord hang over edge of table or counter, or touch hot surfaces.
- Do not place on or near a hot gas or electric burner, or in a heated oven.
- Extreme caution must be used when moving an appliance containing hot oil or other hot liquids.
- Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to “off”, then remove plug from wall outlet.
- Do not use appliance for other than intended use.
3. Product Components
The OSTBA 2.5QT Air Fryer consists of the main unit, a removable non-stick basket, and a crisper plate. Familiarize yourself with these components for proper use and maintenance.

Image: The OSTBA 2.5QT Air Fryer with its main unit and the food basket containing fried chicken.
- Main Unit: Houses the heating element, fan, and control knobs.
- Control Panel: Features dual manual knobs for time and temperature, along with 6 helpful cooking guides.
- Removable Non-Stick Basket: The primary cooking container, designed for easy food release and cleaning.
- Removable Crisper Plate: Sits inside the basket, allowing air to circulate around food and filter out excess grease.
4. Setup
Before first use, follow these steps:
- Unpack: Carefully remove all packaging materials and promotional labels from the air fryer.
- Clean: Wash the removable non-stick basket and crisper plate with warm, soapy water. Rinse thoroughly and dry completely. Wipe the main unit with a damp cloth.
- Placement: Place the air fryer on a stable, heat-resistant, and level surface, away from walls or other appliances to ensure proper air circulation. Ensure there is adequate space around the unit.
- Power: Plug the power cord into a grounded electrical outlet.
5. Operating Instructions
The OSTBA 2.5QT Air Fryer features simple dual knob controls for intuitive operation.

Image: Detailed view of the air fryer's control panel, showing the time and temperature knobs and preset cooking guides.
5.1 Basic Operation
- Prepare Food: Place your ingredients into the non-stick basket, ensuring not to overfill. For best results, arrange food in a single layer.
- Insert Basket: Slide the basket firmly back into the main unit. The built-in smart switch will ensure the appliance is ready to operate.
- Set Temperature: Use the temperature knob (up to 200°C/392°F) to select your desired cooking temperature. Refer to the cooking guides on the top panel for common food items.
- Set Timer: Use the timer knob (0-30 minutes) to select your desired cooking time. The air fryer will automatically shut off when the timer reaches zero.
- Cooking Process: The 3D 720° Rapid Air Circulation technology will begin to cook your food evenly. For optimal crispiness, shake the basket halfway through the cooking time (the smart switch allows you to remove and reinsert the basket without resetting the timer).
- Check Doneness: Once the timer is complete, carefully pull out the basket and check if the food is cooked to your preference.

Image: Visual representation of the 3D 720° cyclonic heat circulation for uniform cooking.
5.2 Cooking Guides
The top panel of your air fryer includes convenient cooking guides for quick reference. These provide suggested temperatures and times for various foods like vegetables, French fries, shrimp, chicken wings, steak, and fish.
| Food Item | Temperature | Time |
|---|---|---|
| Vegetables | 200°C / 400°F | 30 min |
| French Fries | 200°C / 400°F | 25 min |
| Shrimp | 160°C / 320°F | 20 min |
| Chicken Wing | 180°C / 350°F | 30 min |
| Steak | 180°C / 350°F | 25 min |
| Fish | 180°C / 350°F | 20 min |
These are general guidelines; actual cooking times and temperatures may vary based on food quantity and desired crispiness.
Video: Official OSTBA video demonstrating the air fryer's use for healthy and crispy cooking.
6. Cleaning and Maintenance
Proper cleaning ensures the longevity and hygiene of your air fryer.

Image: The removable crisper plate and non-stick basket are shown being washed and placed in a dishwasher, emphasizing ease of cleaning.
- Unplug and Cool: Always unplug the air fryer and allow it to cool completely before cleaning.
- Clean Basket and Crisper Plate: The non-stick basket and crisper plate are dishwasher safe (top rack recommended) for a hassle-free clean. Alternatively, wash them with warm, soapy water and a non-abrasive sponge.
- Clean Main Unit: Wipe the exterior of the air fryer with a damp cloth. Do not immerse the main unit in water or any other liquid.
- Interior Cleaning: For any food residue inside the appliance, wipe with a damp cloth. Avoid using abrasive cleaning materials.
- Storage: Ensure all parts are completely dry before storing the air fryer in a cool, dry place.
7. Troubleshooting
If you encounter any issues with your OSTBA Air Fryer, please refer to the following common problems and solutions:
- Appliance not turning on: Ensure the power cord is securely plugged into a grounded outlet. Check if the basket is fully inserted into the main unit.
- Food not cooking evenly: Ensure food is arranged in a single layer and not overcrowded. Shake the basket halfway through cooking.
- White smoke coming from the appliance: This is usually caused by grease from previous use. Clean the basket and crisper plate thoroughly after each use.
- Appliance smells during first use: A slight odor may be present during the first few uses due to manufacturing residues. This is normal and will dissipate.
For further assistance, please contact OSTBA customer support.
8. Specifications
Detailed technical specifications for your OSTBA 2.5QT Air Fryer:

Image: The air fryer's compact dimensions and 2.5QT capacity are illustrated with examples of food portions.
| Feature | Detail |
|---|---|
| Model Name | 2.5QT Air Fryer |
| Item Model Number | LQ-2001-US |
| Capacity | 2.5 Quarts |
| Product Dimensions | 10.5"D x 10.5"W x 11.5"H |
| Item Weight | 7 Pounds |
| Color | Black |
| Material | Acrylonitrile Butadiene Styrene (ABS), Plastic |
| Special Feature | Manual, Temperature Control, Timer |
| Output Wattage | 1000 Watts |
| Min Temperature Setting | 100 Degrees Celsius |
| Max Temperature Setting | 392 Degrees Fahrenheit |
| Controller Type | Mechanical knob |
| Has Nonstick Coating | Yes |
| Is Dishwasher Safe | Yes |
| Air Frying Technology | Rapid Air Circulation |
9. Warranty and Support
OSTBA stands behind the quality and durability of its products.
9.1 1-Year Extended Warranty
Your OSTBA Air Fryer comes with an industry-leading 1-Year Extended Warranty. This warranty is automatically applied upon purchase; no product registration is required. In the event of any quality problems, OSTBA is committed to providing satisfactory after-sales service.
9.2 Customer Support
For any questions, concerns, or warranty claims, please contact OSTBA customer support through the retailer's platform or the official OSTBA website.