3 ms·
The box fan is analyzed in a separate article. See https://dynomight.net/2020/12/15/some-real-data-on-a-DIY-box-fan-air-purifier/#:~:text=a%20better%20rate%3A-,
by spion 3y ago
The box fan is analyzed in a separate article. See https://dynomight.net/2020/12/15/some-real-data-on-a-DIY-box-fan-air-purifier/#:~:text=a%20better%20rate%3A-,Taping,block%20airflow%2C%20you%20slow%20down%20the%20fan.%20This%20could%20be%20counterproductive,- https://dynomight.net/2020/12/15/some-real-data-on-a-DIY-box....
- afterburner 3y agoAnd the construction is just as shoddy. The gaps where air can bypass the filter are important. Most of the air will bypass the filters because the air will go through the path of least resistance.
- spion 3y agoIf you read the article, you'll see some interesting measurements on that topic.