1. Introduction
The INFINITIPRO by CONAIR Steam Therapy Flat Iron (Model S9900) is designed to provide long-lasting, silky-smooth straight hair using advanced steam technology. This innovative hair straightener features 1½-inch extra-long floating titanium plates for uniform heat distribution and efficient styling. The integrated steam mist hydrates each hair cuticle, minimizing damage and maximizing shine. It offers 5 temperature settings up to 430°F, allowing for personalized styling for all hair types and textures. The unique base station water reservoir ensures effortless refilling, or the straightener can be refilled directly for on-the-go convenience. A built-in sensor helps prevent excessive heat, further protecting your hair.
2. Important Safeguards
When using electrical appliances, especially when children are present, basic safety precautions should always be followed, including the following:
- Burn Hazard: Surfaces get extremely hot during use. Avoid direct contact with skin, especially the scalp, ears, and neck.
- Electric Shock Risk: Keep away from water. Do not use near bathtubs, sinks, showers, or other water sources. Never reach for an appliance that has fallen into water. Unplug immediately.
- Fire Risk: Unplug the appliance immediately after use and when not in use. Do not leave unattended when plugged in. Ensure the appliance is placed on a heat-resistant surface when hot.
- Children: Keep out of reach of children. This appliance is not intended for use by persons 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 operate any appliance with a damaged cord or plug, or if the appliance malfunctions or has been dropped or damaged in any manner.
- Do not use an extension cord with this appliance.
- Do not wrap the cord around the appliance.
3. Product Overview
Familiarize yourself with the components of your INFINITIPRO by CONAIR Steam Therapy Flat Iron:

- 1.5-inch Titanium Plates: Extra-long, smooth-glide plates for efficient and uniform heat distribution.
- Steam Vents: Integrated into the plates to release conditioning steam mist.
- Removable Detangling Comb: Assists in sectioning and detangling hair during styling.
- Water Reservoir: Located within the flat iron handle, it holds water for the steam function.
- Base Station Water Reservoir: An innovative external reservoir that automatically refills the flat iron's internal reservoir.
- Temperature Controls: Buttons to adjust between 5 heat settings (up to 430°F).
- Steam Activation Button: To turn the steam function on or off.
- Power Button: To turn the appliance on or off.

4. Setup
4.1 Filling the Water Reservoir
The INFINITIPRO by CONAIR Steam Therapy Flat Iron offers two convenient ways to fill its water reservoir:
- Using the Base Station:
- Ensure the flat iron is unplugged and cool.
- Fill the external base station water reservoir with distilled water. The reservoir has "MIN" and "MAX" indicators.
- Place the flat iron onto the base station. The internal reservoir of the flat iron will automatically refill in seconds via gravity.

Figure 3: The flat iron resting on its base station, which automatically refills the internal water reservoir. - Direct Refill (for travel or without base station):
- Ensure the flat iron is unplugged and cool.
- Locate the small water reservoir on the flat iron handle.
- Carefully open the reservoir cap.
- Using the provided dropper or a small bottle, fill the reservoir with distilled water. Do not overfill.
- Securely close the reservoir cap.
Note: Always use distilled water to prevent mineral buildup and ensure optimal steam performance. Tap water may cause damage over time.
5. Operating Instructions
5.1 Powering On and Temperature Selection
- Plug the flat iron into a standard electrical outlet.
- Press and hold the Power button until the indicator lights illuminate.
- Select your desired temperature using the temperature control buttons. The flat iron offers 5 heat settings up to 430°F. The indicator lights will flash until the selected temperature is reached, then remain solid.
5.2 Activating the Steam Function
Once the flat iron has reached the desired temperature, you can activate the steam function:
- Press the Steam button to turn the steam mist on. An indicator light will confirm activation.
- You can choose to style with or without the steam function, depending on your preference and hair type.
5.3 Hair Preparation and Styling
- Ensure hair is clean, dry, and free of tangles. For best results, apply a heat protectant spray.
- Section your hair into manageable 1-inch wide strands. The removable detangling comb can assist with this.
- Starting from the roots, gently clamp a section of hair between the plates.
- Smoothly glide the flat iron down the hair section to the ends. The steam mist will infuse moisture as you style.
- Repeat on all sections until desired straightness is achieved. For loose curls, twist the flat iron as you glide it down the hair section.
- A built-in sensor modulates excessive heat for enhanced hair protection, ensuring optimal styling without damage.
5.4 Powering Off
After styling, press and hold the Power button until the indicator lights turn off. Unplug the appliance from the electrical outlet and allow it to cool completely before storing.
6. Maintenance
6.1 Cleaning
- Ensure the appliance is unplugged and completely cool before cleaning.
- Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Clean the titanium plates with a soft, damp cloth to remove any product residue.
- Periodically empty and rinse the water reservoirs with distilled water to prevent mineral buildup.
6.2 Storage
Store the appliance in a cool, dry place. Do not wrap the cord around the appliance, as this can cause damage. Keep out of reach of children.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on. | Not plugged in correctly or power outlet issue. | Ensure the plug is fully inserted into a working electrical outlet. Check the power button. |
| No steam is being produced. | Water reservoir is empty or steam function is not activated. | Refill the water reservoir with distilled water. Ensure the Steam button is pressed and activated. Allow time for heating. |
| Hair is not straightening effectively. | Temperature setting is too low or hair sections are too large. | Increase the temperature setting. Ensure hair is dry. Work with smaller, manageable sections of hair. |
| Appliance is overheating. | Prolonged use or internal malfunction. | Unplug immediately and allow to cool. If problem persists, discontinue use and contact customer support. |
8. Specifications
- Model Number: S9900
- Brand: Conair
- Plate Size: 1.5-inch (extra-long floating plates)
- Plate Material: Titanium
- Temperature Settings: 5 settings, up to 430°F
- Special Features: Steam Therapy, Removable Detangling Comb, Base Station Water Reservoir, Built-in Heat Sensor
- Product Dimensions: 13 x 1.8 x 1.7 inches
- Weight: 1.2 Pounds
- Color: Black
- UPC: 074108461896
9. Warranty and Support
For detailed warranty information, product registration, or customer support, please refer to the official Conair website or contact their customer service department. Keep your purchase receipt as proof of purchase for any warranty claims.