Jeff Kaufman: Air Purifiers as White Noi

This page is a single post on Jeff Kaufman’s personal blog, filed under air quality and purifiers. Rather than reviewing noise machines as a category, it makes a simple case: the fan inside a classic white noise machine could instead pull air through a filter, so the same sound output also delivers clean air. The author frames this as a better use of hardware people already buy for sleep and office privacy.

The core comparison is concrete. A $47 purifier with a 6.5-inch diameter is cited as cleaning 34 cubic feet per minute at 45dB, roughly the size and sound of a traditional noise machine. Against that, the author’s AirFanta 3Pro cleans about six times more air at similar noise, or twelve times more when louder, but costs $165 and takes up a 12.6-inch square footprint.

The post suits people furnishing a bedroom, shared office or waiting room who want sound masking without a second device on the shelf. It is less useful for readers seeking lab-tested decibel charts, multiple product options or guidance on filter replacement costs, since those are not covered.

Read it as one person’s reasoning and a prompt to check CADR and noise ratings before buying. If a small purifier fits your space and budget, the argument is easy to test in practice; if you need heavy filtration, the trade-offs in size and volume matter more.