What is a requirement for foot switches that directly pulse the laser?

A requirement for foot switches that directly pulse the laser is that they need to be hooded. The hooded design serves an important safety function by preventing accidental activation of the laser. This is particularly critical in a clinical or salon setting where precision and control are paramount. It helps to ensure that only intentional actions lead to the pulsing of the laser, thereby minimizing the risk of injury to both the practitioner and the client.

The design features, such as being wireless, ergonomically sound, or having a touch screen interface, can enhance the usability and comfort for practitioners, but they do not fulfill the critical safety requirement that a hooded design provides. Overall, safety features like hooding are essential in maintaining a safe working environment around potentially hazardous equipment like lasers.