When you buy a Faraday pouch, the logical thing to do then is to test whether it is working as advertised. There are several ways you can test the pouch’s effectiveness. One thing you can do is buy an EMF meter and gather the items that you usually carry in your bag. Then, you need to take the meter, stay at least one meter away from the devices and get a reading.
Once you do that, you need to put them into the Faraday pouch, stay at the same distance and implement EMF reading once more. If the product is working, then the amount of EMF should be much lower than before you put the items in the bag.
Another thing you can do is put your cell phone into the pouch and try to call the number from another phone. If the call comes through, that means that the bag doesn’t block the signals as it is supposed to.
Some brands, such as Mission Darkness, also have created apps that you can get for free and test whether your Faraday pouch is working. The app tests WiFi, Bluetooth, and cell signals allowing you to understand how it works so that you can easily determine whether the bag is working.