lungful

From lung +‎ -ful.

lungful (plural lungfuls or lungsful)

1. As much as the lungs will hold.

   The diver took in lungfuls of air as he returned to the surface.

   • 2014, Rebecca Ley, “City versus country childhoods”, in The Guardian, +201 December 2014:

     For there are many kinds of freedom, not just the ones that involve surf and lungfuls of fresh air.