People are worried about EMR safety and there are numerous websites offering EMP protection devices and claiming there is good evidence for efficacy of EMR protection devices for electric /hybrid cars, mobile phones, WIFI earplugs and earphones and home WIFI routers etc.
Please could you complete and publish an impartial, critique of the available evidence and a buying guide - this would be most helpful
You might best start with an objective source of information about EMF such as
In contrast there are myriad conspiracy-style sites selling fear, paranoia, and sometimes products that vary from useful in particular industrial settings to completely useless for the typical consumer situation.
You might be interested in this topic that reflects some sources of good information as well as questionable. While focusing on a fear of smart meters there are numerous posts about EMF in other settings such as wifi, etc.
As you might imagine there is some emotion in the topic but the evidence from peer reviewed studies and scientifically sound evidence is consistent, with many links throughout that linked topic.
If you want to test a device you have to have a clear statement of what it is supposed to do. Choice tests washing machines and the results mean something because we all know what it means to wash clothes and we can reasonably agree on how to measure the effectiveness of devices that claim to do this.
In the case of EMR protection devices it is often unclear what they are supposed to do, how one might measure whether they do it or not and if this might be actually beneficial. If you have some examples that you are interested in please say so and we can have a look and maybe relate them to existing knowledge on the subject.
Here is one test by Choice that you may find interesting. You will see that there is somewhat of a divide between those who feel better for using such a device and those who do not and find no reason why they should. Without doubt the placebo effect is real, the question is will it work for you and is it worth $187 to find out?
If they are using a computer and a screen etc they are surrounded by EM emissions, if they use a mobile device they are in a soup of EMR, if they use a fridge an AC well anything electrical there will be EMR they live with everyday. Then there are the radio waves from broadcasts, the Sun etc that are all around us all the time. Best solution is to enter a Faraday Cage and remain there if they are so worried, of course that means they can never leave the cage.
Oh well differences makes the World go round as the saying goes.
Perhaps the consideration is security rather than health. However if the consideration is security then it is better (and cheaper) to disable the wireless network in the software configuration of the router and if you are still worried then also remove the antennae.
If you are worried about security but you still want to use WiFi then you are going to need a bigger sock i.e. one to wrap the entire house in.
If you are worried about health but you still want to use WiFi then it may be possible and practical to dial down the radiated power in the software configuration of the router. That will be cheaper than buying this product.
Who knows whether this product even works??? It either blocks the signals or it doesn’t.
Or you could have one or more separate Wireless Access Points (WAPs) and turn off WiFi in the router and still use WiFi.
Does this make sense from the perspective of bathing in RF (health) or from the perspective of RF leakage (security)? Maybe, just maybe. Because you can then position the WAPs in just the places you need them and dial down the transmitted power to just what you need. However that is a relatively expensive approach.
If your overriding concern is “health” then honestly you should just not use WiFi. Then there’s no need for dubious shielding products.
Still leaves me wondering:
why do people buy these products i.e. what is their motivation?