What Does Water Droplet Coalescence Mean?
Water droplet coalescence occurs when small droplets of water join together to form a larger droplet. When the fine water droplets in steams or mists join to fall larger droplets that are able to precipitate from the atmosphere, water droplet coalescence has taken place.
Safeopedia Explains Water Droplet Coalescence
Breathable mists in the workplace may represent a workplace hazard to employees and may require the use of exhaust systems, require alterations in ambient conditions or the use of respiratory protection. Typically, when temperatures rise, mists are evaporated and are no longer harmful. When temperatures drop, coalescence occurs and mist droplets become heavy enough to fall to the ground.