What Type of EMF Pollution Do Greenwave Filters Target?

Written by Kim Lear

July 17, 2019

There are 4 types of man-made EMF pollution common in homes and other settings today.

  1. Wireless Radiation
  2. Dirty Electricity
  3. AC Electric Fields (ELF)
  4. AC Magnetic Fields (ELF)
Greenwave Dirty Electricity Filter

Greenwave Dirty Electricity Filter

Greenwave filters target the DIRTY ELECTRICITY traveling along building wiring in homes and other settings.

They do NOT get rid of ambient wireless radiation (i.e., from wireless devices and infrastructure). Nor do they eliminate the extremely low frequency electric and magnetic fields associated with “clean” 50/60 Hz AC electricity. These types of EMF pollution require different mitigation strategies.

What Is Dirty Electricity?

Dirty electricity refers to surges and spikes of electromagnetic energy traveling along power lines and building wires where only standard (“clean”) AC electricity should be. This type of EMF pollution is also known as dirty power, electrical noise, line noise, and power line EMI (electromagnetic interference).

Dirty electricity is created by consumer electronics, modern appliances, energy-efficient lights, and quite a few other items that run on electricity. Why? Because many of these devices no longer use standard AC electricity “as is.” Instead, they must change or “manipulate” electrical current in one way or another in order to operate.

For example, many electrical devices today must convert standard 60 Hertz, 120 Volt (or 50 Hertz, 220-240 Volt) AC electricity (alternating current) into other forms of electricity [such as lower voltage direct current (DC) or higher frequency AC] in order to operate. And, many devices now draw power intermittently, in short bursts, rather than continuously, by turning the flow of power to a device “on” and “off” repeatedly, sometimes thousands of times per second.

These processes interrupt the smooth flow of standard AC electricity, creating harmonics and spikes of electrical energy known as voltage transients. Once created, this unusable “dirty electricity” can spread throughout a building and to other buildings via wiring, power lines, and other means. As it travels, dirty electricity radiates potentially harmful electromagnetic fields into environments where people live, learn, work, and more.


Dirty electricity shown (in pink) on an oscilloscope.

How Do I Know If I Have Dirty Electricity in My Home and Other Places?

These days, most homes and other buildings have at least some dirty electricity and many have a lot. Some of this dirty electricity comes from outside sources (e.g., nearby buildings) via power lines. The rest is generated by the electronics and other electrical devices used inside. Fortunately, there are tools you can use to determine how much dirty electricity is traveling along the wires in your home and other buildings.

The most precise way to measure and evaluate specific characteristics of the dirty electricity on power lines and building wires is to use an oscilloscope and spectrum analyzer. Unfortunately, these devices can be expensive and require expertise and experience to use effectively.

Greenwave Broadband EMI Meter (By Greenwave International)

Plug-in EMI meters (also known as line noise meters or microsurge meters) are a good alternative for untrained individuals. These meters are cost effective and easy to use. Simply plug them into electrical outlets to get a good estimate of the level of dirty electricity present on nearby wiring.

In addition to helping you determine how much dirty electricity is traveling along your wires, a plug-in EMI meter can also be very helpful in guiding the installation of dirty electricity filters and for evaluating their effectiveness.

Meters used for measuring other types of EMF pollution (i.e., RF meters for wireless radiation, AC electric field meters, and gaussmeters for AC magnetic fields) are often not effective for measuring dirty electricity for a variety of reasons. For example:


  • Many of these meters are not sensitive enough to pick up ambient levels of dirty electricity radiation considered unsafe by experts.
  • The frequency range covered by many of these meters does not include some or all dirty electricity frequencies.
  • Many AC electric and magnetic field meters don’t have the ability to distinguish between dirty electricity frequencies and the extremely low frequency electric and magnetic fields associated with standard (“clean”) AC electricity. The professional meters that do have this capability are quite expensive.

What Can I Do About Dirty Electricity?

It is a good idea to reduce dirty electricity in your home and the other places where you spend ample time. Why? Because dirty electricity can interfere with the proper functioning of appliances and electronic equipment, and more importantly, with natural electrical processes within our bodies. Exposure to this type of EMF pollution has been associated with a wide variety of health problems such as cancer, asthma, sleep disturbances, fatigue, skin rashes and tingling sensations, allergy symptoms, headaches, muscle and joint pain, brain fog, memory loss, ADHD symptoms, depression, and more. Experts believe it is the complex nature of dirty electricity frequencies (i.e., their distorted wave forms) that make them particularly detrimental to health and aggravating to those sensitive to EMF pollution.

Here are a few examples of ways to reduce dirty electricity in your home and other spaces.

  • Limit your use of devices known to create dirty electricity.
  • Turn off and unplug electronic devices and other electrical devices when they are not being used.
  • Use standard incandescent light bulbs or 120 Volt (V) halogen bulbs rather than compact fluorescent or LED light bulbs.
  • Replace light dimmer switches with regular on/off switches
  • Install Greenwave filters in electrical outlets.

Greenwave filters utilize state-of-the-art electromagnetic interference (EMI) filtering technology to significantly reduce the dirty electricity (i.e., harmonics and voltage transients) present on the wiring on buildings. This is a direct, effective, and practical way to target this type of EMF pollution. The less dirty electricity there is flowing along building wires, the less that will radiate into your environment.

The filters plug directly into electrical outlets and power strips. They “short out” (shunt) surges/spikes of electrical energy (i.e., dirty electricity), while allowing standard 50/60 Hz AC electricity to pass through unimpeded.

Learn More

For more about dirty electricity and other types of EMF pollution and solutions greenwavefilters.com

Learn more about Greenwave Filters

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