Over the past two years, Bell has conducted extensive prototype and track testing with our top professional NASCAR drivers to improve airflow, ventilation and cooling in high temperature environments. The Infusion uses Bell's Air Chamber technology to create pressurized chambers inside the helmet to help accelerate and route airflow for maximum ventilation. The Infusion will be offered in a top air, left side air and right side air version. The Infusion Top Air features a low profile top air chamber and a new pipe location that is farther back and at a lower angle for better clearance. The Top Air model accelerates airflow around the top of the head and to the cheek area of the face. The Infusion will be used extensively in NASCAR and Sports Car competition in 2007.
Air Bladder Technology
The Infusion Top Forced Air features an air bladder top pad with micro ventilation holes that not only accelerate airflow but evenly disperse it around the driver's head for maximum comfort and cooling. 
| Part Numbers, Color, Sizing | |
| White | Flat Black |
| 2004127 7⅛ | 2004139 7⅛ |
| 2004128 7¼ | 2004140 7¼ |
| 2004129 7⅜ | 2004141 7⅜ |
| 2004130 7½ | 2004142 7½ |
| 2004131 7⅝ | 2004143 7⅝ |
| 2004132 7¾ | 2004144 7¾ |
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