Breathing

дышать [no Pf.] через носa (or носомi) to breathe through one's nose
вдыхать/вдохнуть [Pf-once] через носa to inhale through one's nose
выдыхать/выдохнуть [Pf-once] через носa to exhale through one's nose
NB Note the different options used with дышать vs. вдыхать and выдыхать.
фыркать/фыркнуть [Pf-once] носомi to snort
сопеть/посопеть [Pf-awhile] носомi to puff, to wheeze, to breathe heavily through the nose