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

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

1.2M views • 5 years ago

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.

Weird webcam mod that enables eye-contact conversation

Weird webcam mod that enables eye-contact conversation

1.6M views • 6 years ago

DIY Perks builds a webcam mod using a two-way mirror in a box so the camera sits behind the screen image. This allows real eye contact on video calls.