EMF Guide (2025)

06/02/2025

What is Bluetooth and Is It Dangerous?

This article will give you a brief overview of bluetooth devices, how they operate and potential health concerns that come with their use.

What Is Bluetooth?

Bluetooth is a wireless communication protocol designed for exchanging data over short distances—typically up to about 10 meters (33 feet) for most consumer devices, although some variants can reach further. It was originally conceived to replace cables for peripheral connections, and today it supports various applications, including audio streaming, file transfers, and device control.

Common devices that utilize this within your home are as follows:

headphones and earbuds
computers
game systems
cell phones
smart watches
smart devices
automobiles

Read the entire article here: https://emfguide.com/is-bluetooth-dangerous-how-it-works-and-how-to-protect-yourself/

04/02/2025

How to Identify EMF Sources in Your Home

In our modern world, our homes and apartments are filled with electronics and appliances that introduce man-made EMFs (electromagnetic fields) into our living spaces. Understanding and identifying the sources of these man-made EMFs is crucial for those concerned about potential health impacts.

The goal of this article is to give you an overview of how you can detect these sources in your home efficiently.

Understanding EMFs: A Brief Overview

Man-made electromagnetic fields can be categorized into two main types:

- Low-Frequency EMFs (Magnetic and Electric Fields): These are usually emitted by the presence of electricity (in the home or via power lines) and by appliances in homes.
- High-Frequency EMFs (Radio Frequency Fields and Dirty Electricity): These come from wireless devices such as cell towers, cell phones, Wi-Fi routers, bluetooth devices and modern lighting devices.

Common EMF Sources in Your Home

1. Wi-Fi Routers

Wi-Fi routers are a significant source of EMF because they constantly emit signals to connect devices wirelessly. Position these devices in areas where family members spend less time, and consider turning them off when not in use to reduce exposure.
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Read the rest of the post here - https://emfguide.com/how-to-identify-emf-sources-in-your-home/

14/11/2024

What are common causes of Radio Frequency Radiation or RF in a home? – The EMF Guide Question of the Day

Man-made RF or Radio Frequency radiation is the product of modern communication technologies and devices.

This type of EMF is most commonly caused by the following five sources:

01 – Cell Towers

This is the primary external source of RF radiation that will infiltrate homes. Pulsed radiation is sent forth from these structures in an attempt to make contact with cell phones. Obviously, the closer these structures are to your home the more powerful the exposure.

External RF like this can be shielded fairly easily through RF blocking paint, window film and foil.

02 – Cell Phones

This is likely the most common exposure source that people will have. Simply keeping your phone at a distance or having it in airplane mode, can reduce the exposure markedly.

03 – WiFi Routers

This is the other top exposure source that people will have in their homes. Turning it off entirely, by either wiring your home with ethernet or only keeping it on when it’s needed, will substantially reduce your family’s exposure.

There are low-EMF routers you can purchase, as well.

04 – Laptops and Tablets

RF is how your laptop or tablet connects to WiFi, Bluetooth devices or cell towers.

This exposure can be limited by using wired ethernet connections instead and, to some extent, by RF blocking cases or other materials.

05 – Other Tech Devices

Any device that can connect via WiFi or Bluetooth will be subjecting you and your family to RF radiation. Wiring streaming boxes, game consoles and other devices with ethernet when possible will lower the exposure.

We go over radio frequency radiation more in our chapter, “What are Radio Frequency Fields?“

If you’d like to measure the radio frequency fields in your home, check out our “Best EMF Meters” page or find an EMF consultant near you.

21/10/2024

What are common causes of dirty electricity in a home? – The EMF Guide Question of the Day

Dirty electricity is produced when by the intentional manipulation of electricity on power lines and internal building wiring.

It's most commonly caused by the following three sources:

01 – Dimmer Switches

Modern dimmer switches work by turning the light bulb circuit on and off 120 times a second. Unfortunately, each time it does this it produces a spike in its magnetic field, harmonic distortions and radio frequency bursts. This is the "dirty electricity."
These are best removed and replaced by regular light switches.

02 – Compact fluorescent lights (CFL) and LED lights

These lights achieve their energy savings in a similar fashion to dimmer switches. by refreshing (turning on and off) themselves at rates too quick for the eye to notice.

Here’s a quote from an article in Scientific American:

However, modern, electronically ballasted CFLs refresh themselves at between 10,000 and 40,000 cycles per second, rates too fast for the human eye or brain to detect.

Incandescent bulbs, although hard to get now, are a better choice for lightbulbs.

03 - Tech Devices

These can include the plugged-in chargers for laptops and other tech devices, solar or wind inverters, smart meter communications and over-the-wire ethernet connections.

See our website for solutions to each.

We go over dirty electricity more thoroughly in our chapter, "What is Dirty Electricity and Is it Dangerous?"

If you’d like to measure the dirty electricity in your home, check out our “Best EMF Meters” page or find an EMF consultant near you.

18/10/2024

What are common causes of electric fields in a home? – The EMF Guide Question of the Day

Man-made, non-native electric fields are most commonly caused by the following two sources:

01 – Energized Electrical Circuits

If you have electricity in your home, you're going to have electric fields.

These can be reduced through the de-energization of the electrical circuits, but this can often cause inconvenience and shouldn’t be done unless the circuit breaker box and breakers have been examined and determined to be safe by a licensed electrician.

Remote cut-off switches are a great solution. These are installed by an electrician and let you turn off the circuits to your bedrooms at night, thereby reducing your exposure levels. Learn more about remote cut-off switches below.

02 – Cords

Examples of these are light cords, plug-in strips, extension cords, computer peripherals and phone charger cords. These sources can be removed easily and we encourage people to do so.

The solution to this is to unplug the cords and don't have them running near your sleeping areas and to use shielded/grounded options.

There are other sources, as well, but these are the most common culprits if you have high levels of electric fields in your home.

If you’d like to measure the electric fields in your home, visit our site or check out our “Best EMF Meters” page or find an EMF consultant near you.

17/10/2024

"Why are people afraid of EMFs?" - The EMF Question of the Day

People are afraid of EMFs (electro-magnetic fields), because the EMFs are non-natural sources of radiation. These man-made EMFs are caused by our technological advances in communication and by the use of electricity.

While no one is saying that electricity or cellular devices are solely bad and should be gotten rid of, many people have reservations about the level of exposure that humans are getting from man-made EMFs.

And the science is starting to prove these people right.

A landmark study by the National Toxicology Program (part of the National Institute of Health) found that high exposure to one type of EMF (radio frequency radiation or RFR) caused malignant tumors in rats and mice.

The study subjected rats and mice to high levels of older 2G and 3G radiation from cell phones and found the following:

• Clear evidence of tumors in the hearts of male rats.
The tumors were malignant schwannomas.

• Some evidence of tumors in the brains of male rats.
The tumors were malignant gliomas.

• Some evidence of tumors in the adrenal glands of
male rats. The tumors were pheochromocytomas.

The above example is why some people are "afraid of EMFs" and why you and your family should consider lowering your exposure, if possible.

To learn more about testing for EMFs, please visit our website linked below.

04/10/2024

What are common causes of magnetic fields in a home? – The EMF Guide Question of the Day

Man-made, non-native magnetic fields are most commonly caused by the following four sources:

01 – External Power Lines

These transmission and distribution lines can produce large magnetic fields. These are hard to shield against, but drop off with distance.

02 – Stray Current from Other Homes and Businesses

Stray current will find its way into a home via metal water pipes and other grounding wiring such as cable TV wires. This can be dealt with fairly easily.

03 – Wiring Errors

Sometimes you’ll find high magnetic fields as a result of poor attention to detail from the electricians or handymen that wired a circuit. An electrician can take care of these.

04 – Appliances

Some appliances (such as fridges) can have close proximity magnetic fields that are elevated. Distance is best for these, but there is some point source shielding that you can use.

There are other sources, as well, but these are the most common culprits if you have high levels of magnetic fields in your home.

If you’d like to measure the magnetic fields in your home, visit our website and view our “Best EMF Meters” page or find an EMF consultant near you.

02/10/2024

Is Reducing EMF Radiation Good? – The EMF Guide Question of the Day

In a word, yes, reducing you and your family’s man-made, non-natural EMF radiation is a good step to take.

There are several studies that show that high and lengthy exposure to magnetic fields, electric fields and radio frequency fields can have a detrimental effect to the health of animals and humans. You can see some such EMF health studies on our website.

The most recent and convincing study was a study by the National Toxicology Program (part of the National Institute of Health) that found high exposure to radio frequency radiation (RFR) caused malignant tumors in rats and mice. The most damning being the “clear evidence of tumors in the hearts of male rats.”

Even if this evidence wasn’t available, we view it as a commonsense action to take. Just like agricultural pesticides and genetically modified foods, these EMFs are non-natural.

Why would you want extended exposure to them?

On our website we have sections on how to test for EMFs, the best EMF meters to buy and how to shield against EMFs.

01/10/2024

What is an EMF Meter? – The EMF Guide Question of the Day

An EMF meter is a handheld device that can detect man-made/non-native electro-magnetic fields or EMFs.

By determining the EMF levels in your home or office, you can ascertain which are elevated and need to be shielded against.

There are four main types of EMFs that meters test for:

Magnetic Fields (commonly for power lines and home wiring errors)

Electric Fields (commonly for power lines and electrical circuits)

Radio Frequency Fields (commonly for cell phones, 5G, wi-fi and cell towers)

Dirty Electricity (commonly for LED and CFL light bulbs and electronics’ power supplies)

Unfortunately, not all meters can detect each of the four types of EMFs. Some only detect for one, while others can detect two or three.

We have a detailed section on our website that explains which meters are best for measuring each type of EMF. Click the link below to view our recommended EMF meters for people on any budget.

30/09/2024

Does EMF Cause Cancer? – The EMF Question of the Day

While there hasn’t been a conclusive study on humans, a study by the National Toxicology Program (part of the National Institute of Health) found that high exposure to radio frequency radiation (RFR) caused malignant tumors in rats and mice.

The study subjected rats and mice to high levels of older 2G and 3G radiation from cell phones and found the following:

Clear evidence of tumors in the hearts of male rats. The tumors were malignant schwannomas.

Some evidence of tumors in the brains of male rats. The tumors were malignant gliomas.

Some evidence of tumors in the adrenal glands of male rats. The tumors were pheochromocytomas.

So, does EMF cause cancer?

The NIH says yes, in rats and mice.

27/09/2024

"What Does EMF Stand For?" - The EMF Question of the Day

EMF is short for "Electro-Magnetic Field."

These man-made, non-natural fields are the products of the electricity in our homes and the telecommunication devices we use. They are what EMF consultants test for when they survey a home or office.

There are four, main types of EMFs that are tested for.

Magnetic Fields
Electric Fields
Radio Frequency Fields and
Dirty Electricity

You can learn more about EMFs and how to keep your family and your pets safe from these invisible dangers by visiting our website at http://emfguide.com.

If you're interested in learning how to test for these EMFs, read our Best EMF Meters to Purchase page on our website - https://emfguide.com/recommended-emf-meters/

26/09/2024

What Reflects EMFs (Part 02): Magnetic Field Shielding

Part 01 of this article explored the different types of commercially available materials used in RF shielding and electric field shielding.

In Part 02, we're going over the sources of these fields and materials and ways to shield against elevated magnetic fields.

Unfortunately, elevated magnetic fields can be difficult to shield against. These fields are primarily produced by wiring errors, stray current coming in on utility lines, appliances and external power lines.

We'll go over each below.

Wiring Errors

Electrical wiring issues are a fairly common occurrence and can lead to some shockingly high magnetic fields. If your testing yields high results, instead of shielding for these, you'll want to have an electrician simply fix the issue.

Hit the link below to read the rest of the article.

EMF Guide

06/02/2025

04/02/2025

14/11/2024

21/10/2024

18/10/2024

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04/10/2024

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30/09/2024

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