What are the key differences between helmets designed for technical rope rescue and those used in other rescue scenarios?

Q: Is there a single helmet the fits all rescue needs? A: No, there is not a single helmet that fits all rescue needs. With rescue helmets there are many options driven by two major factors; 1) Your agency and 2) The environment of rescue. Generally speaking the majority of urban fire/rescues follow FEMA/USAR requirements. […]