Education
Electromagnetic fields — what they are, where they come from, and what a professional survey measures.
The basics
EMF stands for electromagnetic fields. They are invisible areas of energy produced by electrically charged objects — and they are everywhere in the modern home. Your wifi router, your smart meter, your mobile phone, your wiring. All of it produces electromagnetic fields of varying frequencies and strengths.
The question isn't whether EMF exists in your home — it does. The question is how much, from what sources, and whether the levels you're exposed to during sleep are worth addressing.
From wifi, phones, power lines and wiring. This is what home surveys measure. Subject of ongoing health research.
X-rays and gamma rays. Not produced by household devices. A completely separate category — not what home surveys cover.
Electric fields
From wiring, appliances and electrical infrastructure.
Magnetic fields
From power cables, transformers, fuse boxes and smart meters.
Radiofrequency
From wifi routers, mobile networks, smart meters and DECT phones.
Dirty electricity
High-frequency interference from energy-saving devices and solar inverters.
Body voltage
Electrical potential induced in your body — most relevant in the bedroom.