Class II standpipes are designed primarily for use by:

Class II standpipes are designed primarily for use by building occupants. This type of standpipe system is typically found in commercial or multi-story residential buildings and is intended to provide a means of firefighting to individuals who may be familiar with the building and its layout. Class II standpipes are equipped with hoses that are usually 1.5 inches in diameter and are often located near exits or in accessible locations, enabling occupants to quickly use them in the event of a fire before first responders arrive.

This design aims to empower occupants to take immediate action to suppress small fires, potentially saving lives and minimizing property damage until professional help can take over. In contrast, Class I standpipes are primarily intended for emergency responders, allowing firefighters to connect their larger hoses for more effective firefighting operations.