PNIF

AcronymDefinition
PNIFPeak Nasal Inspiratory Flow
References in periodicals archive ?
7% reduction in PNIF score in the group taking AllerGuard Express (indicating an enhanced ability to breathe through the nose) and an improvement in subjects' perception of allergy-related symptoms ranging from 12-30%.
They are known by the acronym PNIF, for private nonindustrial forestland owners.