A brief warning for those making their own purifier: five years ago, Hacker News ran a story, “Build a do-it-yourself air purifier for about $25,” to which someone replied,
One data point: my father made a similar filter and was running it constantly. One night the fan inexplicably caught on fire, burned down the living room and almost burned down the house.
Luckily, that’s probably not an issue for PC fan based purifiers. Box fans in CR boxes are running way out of spec with increased load and lower airflow both increasing temperatures, whereas PC fans run under basically the same conditions they’re designed for.
A brief warning for those making their own purifier: five years ago, Hacker News ran a story, “Build a do-it-yourself air purifier for about $25,” to which someone replied,
Luckily, that’s probably not an issue for PC fan based purifiers. Box fans in CR boxes are running way out of spec with increased load and lower airflow both increasing temperatures, whereas PC fans run under basically the same conditions they’re designed for.