A saliva droplet with an initial diameter of 100 m emitted by a cough will take between 6.3 s and 21.9 s to sediment depending on the ambient RH. Providing the RH is below the phase change RH, this provides enough time for the droplet to undergo phase change prior to sedimenting. Indeed, this is case for all initial diameters below 100 m. It is important to note that an accurate understanding of the phase and time-dependent moisture content may play an important role in understanding the survival of viruses and bacteria in evaporating droplets. In terms of potential exposure, we calculated the fraction of droplets below 100 m from a measured respiratory droplet distribution that remain elevated above 1 m at regular separation distances between 1 and 4 m. We show that the fraction in initial volume distribution decreases from 1 to 0.125 as the separation distance is increased from 1 to 2 m under typical ambient conditions.