What generally activates some types of inflatable life jackets?

Inflatable life jackets are designed with different activation mechanisms to ensure that they provide buoyancy when needed. In the case of some types of inflatable life jackets, they are activated by a manual pull cord.

This manual activation allows the wearer to inflate the life jacket intentionally when they believe it is necessary, providing a degree of control over its use. This is particularly useful in situations where the wearer may have time to prepare for potential immersion in water, allowing them to ensure they are safe before entering hazardous conditions.

Other activation methods exist, such as automatic inflation via water immersion, but these are not the mechanism for the type of life jackets referenced in this question. Understanding how each type of inflatable life jacket operates is crucial for safety and proper usage while boating, as it ensures that individuals know how to activate their life-saving equipment effectively when needed.