Evaporative coolers are primarily used in climates where the summers are:

Evaporative  cooler   are  primarily  used   in   climate  where  the  summer   are  hot  and   dry
  The   evaporative  cooler  help  to  keep  the  home cool  and   comfortable  during    warm  month   example   during    hot  and  dry    climatic  condition.  The  evaporative  cooler  device   cool  air  throught  the   evaporation  of   water. This  device  differ  from  typical  air  condition  system which   uses  vapor  compression  or  absorption  refrigeration.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

~wikipedia

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!