How to Make a DIY Air Filter | Ask This Old House
What it is
This Old House's Ross Trethewey explains MERV filter ratings and how air filtration works, then shows how to build a localized DIY air filter, including a box fan with multiple filters.
Why Hacker News recommends it
HN recommends it as a practical breakdown of filtration versus air volume and a clever box-fan filter design.
- 2 people recommended it
- 2 different months
- 0 strong recommendations
- first 2021, last 2022
What HN commenters said
“This Old House made a great video on the subject of using box fans with filters”
Great video on box fans with filters.
Meleagris, 2021-02 · Recommendation · in “The Cuboid: A DIY air purifier that's better than a box fan”
“This Old House has a really good breakdown on filtration and air volume and have a pretty clever DIY box fan approach using multiple filters.”
Good breakdown of filtration and air volume with a clever multi-filter box fan.
tootie, 2021-10 · Recommendation · in “Real-world data show that filters clean Covid-causing virus from air”
Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.
Topics: air filter, merv, box fan, indoor air quality, diy
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