When reconstituting and withdrawing chemo from vials how can one minimize aerosol drolets?

Where dose rain come from?

Rain is first formed a very small droplets of water from clouds due to condensation. These droplets fuse in a process similar to nuclear fusion to form larger and larger drolets until they are too heavy and fall as rain drops. As they fall, they form the streamlined shae we all know. Until then, they are mostly spherical.