Dirty Electricity Filter

Dirty Electricity Filter

Dirty Electricity consists of high frequency “electrical noise” of 1000 Hz (1 kHz) and upwards that has become superimposed on your wires. It is mostly from devices with “switched-mode power supplies”, but includes short sharp transient spikes from inductive loads like motors being switched on and off. Most of the published work on this uses the Stetzer Microsurge meter which measures noise between about 2 kHz and 120 kHz, however the DE noise extends up into the MHz region 

Our DE2 filters now have a larger capacitor (more effective at reducing DE) 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.

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 13A mains power socket.

We suggest a maximum of one-per-room and, in the first instance, probably just starting with 3 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.

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 supplied as standard UK 3 pin plug.

Scroll to Top