How to Make a DIY Air Filter | Ask This Old House

Name: How to Make a DIY Air Filter | Ask This Old House
Description: 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.

This Old House

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.

HN recommends it as a practical breakdown of filtration versus air volume and a clever box-fan filter design.

3 Hacker News mentions · 2021–2022

Topics

Home, DIY & practical skills
Power grid, heating & buildings

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