The differences between wind speed sensors and air volume sensors

Distinguishing between a wind speed sensor and an air volume sensor begins with understanding wind speed and air volume.
What is IoT? IoT Sensors And Applications

The Internet of Things (IoT) is a network of devices, systems, and objects. These items connect and share data using the internet. It uses many sensing devices connected with network technologies. This creates a large web that allows people, machines, and objects to interact anytime and anywhere.