Droplets that measure 100-400 microns in diameter are classified as what type of spray?

Droplets that measure 100-400 microns in diameter are classified as a medium spray. This classification is based on the size of the droplets and their behavior when applied. A medium spray provides a balance between fine and coarse sprays in terms of droplet size, allowing for effective application while minimizing issues like drift or excessive runoff.

Medium sprays are often used in various applications, including medical nebulizers, agricultural spraying, and aerosolized solutions, where the aim is to deliver an appropriate amount of liquid over a targeted area or to facilitate absorption. The droplets in this range are capable of remaining airborne for a reasonable amount of time, which contributes to their effectiveness in these settings. The choice of classification is important for understanding how a spray will behave in practice and how well it will achieve its intended purpose.