3 ms·
There is a report of a fire started by overheating of the box fan motor in such an ad-hoc purifier. The box fan is not designed for this application. Humbly su
by hollerith 3y ago
There is a report of a fire started by overheating of the box fan motor in such an ad-hoc purifier. The box fan is not designed for this application.
Humbly suggest not running this unattended.
- btbuildem 3y agoA properly built CR box (bottom base, four filter walls, fan on top) relieves this concern. Ample airflow around the fan and four filters let enough air through.
- hollerith 3y ago(Replying to myself.) Here is the report I refer to: https://news.ycombinator.com/item?id=21382994 https://news.ycombinator.com/item?id=21382994
- bredren 3y agoThis concern comes up often against DIY filtration systems like this but I've yet to see a study showing this to be the case. I have seen this study [1] that says no fire hazard is created by motor stress from these kinds of setups. [1] https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box