Which type of dry formulation has a risk of inhalation when mixed?

The type of dry formulation that poses a risk of inhalation when mixed is wettable powders. These formulations are designed to be mixed with water to create a suspension for application. When mixing wettable powders, the fine particles can easily become airborne, leading to inhalation risks for the person handling them.

This is particularly significant because wettable powders often have smaller particle sizes, which facilitates their ease of dispersal into the air. This characteristic necessitates careful handling practices, such as using personal protective equipment like masks and working in well-ventilated areas, to minimize exposure and protect health.

Other types of dry formulations, including granules, water dispersible granules, and dry flowables, generally carry a lower risk of aerosolization when mixed due to their larger particle sizes or the way they are intended to be used, making them less likely to become airborne compared to wettable powders.