Vinegar is a versatile household staple that goes beyond culinary applications. One of its most popular uses is as a natural air freshener. This article will delve into how to effectively use vinegar as an air freshener, and why it works so well to eliminate odors and freshen up your space. What is Vinegar? Vinegar is a solution of acetic acid and water, often produced through the fermentation of ethanol by acetic acid bacteria.