When prepping for a SHTF event, we often think about weapons and ammunition as the best way to defend ourselves. While that might be the case for a physical danger, we forget that technology gives us (and our enemies) the chance to use technology to track and hack us. When we're facing a crisis, the last thing we want to do is give away our location and the location of our stockpile. As a result, it's crucial that we learn the best ways to stay safe so learning about faraday and mylar bags is a good place to start:

Mylar Bags vs Faraday Bags

Mylar bags are made of a transparent polyester resin and coated with aluminum.  The thickness of the Mylar bag is 3.5 mils.

A Faraday Defense bag has five layers made up of static dissipative polyethylene (plastic), aluminum, polyester, aluminum, and the final coat dissipative polyethylene polyester.  The thickness of it is 7 mils.

The thickness and protection from light is apparent in the picture above.

Testing Faraday Bags

What are Faraday Bags Designed to Block?

Faraday bags are designed to block radio frequency interference (RFI).  Attenuation or dB is what you’re looking for when shopping for Faraday bags.  Attenuation is the measurement of how effective the shielding is. Anything above 60dB is considered very good protection.

Since the bags failed two out of the three tests, it raised the question:  Why didn’t they block the radio frequency better?

My best guess, based on the test, is not enough shielding.

I’ll be adding extra protection to each electronic device.  Each item will be wrapped in plastic, then wrapped in two layers of tin foil, and placed in the Faraday bags for anti-static shielding.

There are a couple of things I liked about the Faraday bags.  First, I like that the bags seal completely. Second, it’s easily accessible and compact, unlike most Faraday cages.

Have you tried using faraday or mylar bags? What was your experience with them?

Article and Photo Source: Preppers Survive