EMFields Logo 
Current office time: 21:07:48
We ship worldwide - please see Stockists
Office hours: 9:00-17:00 hrs (UK) Mon-Fri
Your basket Welcome, guest

Your basket is currently empty
[Skip to content]

'Dirty Electricity' Filters Overview

  » Filters » [Overview]
  » Dirty Electricity» [Dirty Electricity Overview] [DE2 filter] [Mains filter]
  » Other Filters» [ADSL filter] [ELF Ferrite] [RF ferrite]
  » Other » [Foil tape]

For more detailed information (including "What is DE?"), please see our article on "How to deal with Dirty Electricity".

Our deTekta meter is available for taking DE measurements.

Dirty Electricity FilterEU adaptor
All prices include VAT

Please pick a product

DE2 Filter (an improved DE1 filter)

Our DE2 filters now have a high-quality mains-rated capacitor and, uniquely, have an internal electric field screen which greatly reduces the electric field around the outside of the filter. They also have an internal safety fuse and other components.

Fitting a few DE2 "Dirty Electricity Filters" in your house helps reduce the DE by lowering high-frequency noise on your house wiring. They plug in (and occupy) a standard (UK 13A) mains power socket. We suggest a maximum of one-per-room and, in the first instance, probably just starting with two for the whole house. Please note that they reduce problematic high-frequency noise between the 230 volts phase and the neutral and don't lower the normal electric fields created by house wiring. For more details, please see "How to deal with Dirty Electricity".

Buy multiples and save money (3 pack saves you 10%, 6 pack saves you 20%)

Technical detail: The unit contains a 10 microfarad a.c. mains-voltage rated capacitor, discharging resistor and fuse. Unlike some DE filters on the market ours contain an electric-field screen inside the case which is connected to the Earth pin. Some filters on the market are not even internally fused. Our DE2 units are fully approved to European safety standards.

These are either supplied as standard UK 3 pin plug or with a Euro plug adaptor (Type F - Schuko) in the pack - just select which type you want.

More Info » Looking for a DE meter?

» Customer rating: Full star Full star Full star Full star Full star (4 reviews) [View all review comments]

Dirty Electricity Mains Filter Strip
£46.75 (inc. vat)
In stock
Add to basket

Mains filter

Technical Specification

  • Operating voltage: AC 220-250V
  • Max. current rating: 13A
  • Max. surge current: 6500A
  • Frequency - (Insertion Loss)
      » 150kHz -(>12dB)
      » 3 MHz - (35dB)
      » 30 MHz - (30dB)
      » 1 GHz - (15dB)

This unit contains a powerful mains conditioning filter which will greatly reduce radio-frequency noise and interference on your house mains electricity supply coming from your computers, TVs, videos, modern switched-mode mains adapters and chargers, etc. The filters are designed to dramatically reduce both "asymmetrical" as well as "symmetrical" interference. It uses high frequency capacitors and an inductor/choke as well as an earth line choke to stop interference through the mains earth line. It uses a screened mains cable to eliminate the effects of radiated noise interference.

  • Space for six UK plugs
  • Includes surge protection
  • Stops "dirty mains" and RF signals being sent into your house wiring by computers, TVs, videos, etc.
  • Greatly reduces interference from external sources at frequencies above 300 kHz. The DE meter picks up DE from a few kHz upwards, so it may pick up emissions from external sources from a few kHz to 150 kHz let through by the mains filter strip.
    We recommend using DE2 capacitor filters to absorb lower frequency noise (1 kHz - 300 kHz) in conjunction with these multi-way conditioning filter strips used for your TV/Hi-Fi and computer equipment.
  • Often improves picture and sound quality with AV equipment
  • 2 metres of screened lead

» Customer rating: Full star Full star Full star Full star Full star (2 reviews) [View all review comments]

Alert message Using our products abroad

Please note that if you are buying a product with a UK plug on it, you may need to use a local adaptor for use in your own country. Some products are not suitable for use outside the UK, please contact us if you are unsure about any product listed. To help you identify your plug type this site may help. (In the UK, we use the type shown as "G").

Further information on 'Dirty Electricity'