The difference between a wheeze that reads as 'asthmatic' and one that reads as 'dying' is mostly in the pitch and the duration of the inhale — a quarter-second longer and the audience starts to worry. These 18 wheezing clips work that fine range honestly: shallow asthma wheezes recorded at a sleeping distance, audible inhales with the slight whistle of a constricted airway, the labored breath sounds that follow exertion, and longer inspiratory wheezes for medical-training material.
Medical animation and patient-education videos reach for the cleaner inspiratory takes because they're isolated enough to overdub onto an instructional voice without competing. Film and TV use the labored-breath material under elderly-character close-ups or post-fight recovery scenes — it does emotional work that dialogue can't. Horror editors pitch the wheezes down a third and they become creature breathing without losing the wet, human edge. Free to grab for any project, no attribution required.