PNIF - What does PNIF stand for? The Free Dictionary
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.