What the research says about the fields in your home.

You already tune the rest of your home.

You probably think about the air you breathe, the water you drink and the light you sleep under. Your home has one more layer that rarely gets the same attention: the wiring, wireless devices and utility equipment that fill every room with electric, magnetic and radiofrequency fields. You can't see it, and most people never look.

If you like to understand how your home actually works, and make it work a little better, the published research is a sensible place to start. It is also enormous, technical and easy to misread, which is what this page is for.

Most people who go looking for answers end up in one of three places, and each leaves a real gap.

• Skimming headlines.One study, in one headline, describes someone else's exposure. It is easy to come away more worried, or more dismissive, than the evidence supports.
• Buying a product first.A shielding fabric, a paint, a router guard, bought before anyone has found what is in the room or where it comes from. Sometimes it helps. Often it misses the actual source.
• Picking a side."It's all fine" and "it's all harmful" are both ways of not looking closely. What is true of a specific home usually sits somewhere in between.

Each instinct is reasonable. None of them tells you what is in your own rooms.

A map of what has been reported.

This page summarizes a public database of published EMF research, kept by an independent non-profit, ORSAA (the Oceania Radiofrequency Scientific Advisory Association). It holds 2,609 studies that report at least one biological effect from electromagnetic fields, sorted into 46 effect categories. Snapshot last refreshed 2026-09-13.

Five things to keep in mind as you read it, or browse every study in the EMF studies database:

• It is a selection.This is a selection of published research, not a complete list of everything written about EMF.
• A count is not a risk.Each number is how many studies in the database reported that effect. It is not a measure of risk, dose or likelihood of harm in a home.
• Studies that found nothing are mostly missing.The database mainly collects studies that reported effects, so it can't show how common effects are compared with studies that found none.
• The counts overlap.One study can appear in several categories, so the numbers can't be added together.
• An effect is not automatically a health effect.Study designs and exposure conditions vary widely. Use the page as a map of what has been reported, and follow the links to the original papers.

How to read the tiles.

Each tile below is one type of biological effect that researchers have reported after exposing cells, animals or people to electromagnetic fields, such as oxidative stress, altered gene expression or changes in sleep. The number is how many studies in the research database reported that effect. The colour is the database's own label for how the effect relates to disease.

The biggest categories are Altered Enzyme Activity / Protein Levels / Protein Damage (796), Biochemical Changes (782) and Oxidative Stress / ROS / Free Radicals (598). These are mostly things measured in cells and tissue in a lab. The three categories the database labels as a known disease (Brain Tumours, Breast Cancer and Autism / ADHD / Hyper-Activity) have between 11 and 72 studies each. A large number means many studies reported that effect. It does not mean the effect is likely at the exposure levels found in a home.

Each study is marked with the database's own finding. About 95% of listings say "Effect"; the rest are marked "Uncertain Effect", "No Effect" or similar. New to this? Select any tile to open that category in the EMF studies database and see what the individual papers tested.

A study count can't tell you about your bedroom.

The studies above describe exposures in cells, animals and people under many different conditions. Your home has its own: one electrical service, one set of wiring, one mix of devices in particular rooms. Fine-tuning it starts with knowing what is actually there. An assessment measures four things:

• AC magnetic fields.Produced by current flowing in wiring, panels, appliances and the utility service. Often traceable to a wiring fault or to where a device sits, which makes them fixable.
• AC electric fields.Produced by voltage on wiring and cords, whether or not a device is running. They depend on how the wiring is run and how close it is to where you spend time.
• Radiofrequency.Wireless signals from Wi-Fi, cell phones and towers, smart meters and Bluetooth. Which devices you own, how they are set up and what arrives from outside all matter.
• Dirty electricity.High-frequency noise riding on household wiring, created by electronics such as chargers, dimmers, LED drivers and inverters.

The method is deliberately short.

• Measure first.Find out what is present before deciding anything is worth changing.
• Follow the source.A reading only becomes useful once you know where it comes from and whether it is fixable.
• Change only what is needed.Most findings are a wiring error, a device placement or a setting, not a product to buy.

Mitch Marchand, B.Sc. EE, has been measuring homes since 2011: more than 1,000 assessments across 5 countries, and a Certified Building Biology Electromagnetic Radiation Specialist. Riun Ashlie runs most of the day-to-day work today, with more than 10 years of hands-on EMF measurement and mitigation experience of his own.

Want to explore on your own first? Try the free light flicker tool, the FCC ID lookup or the EMF unit converter.

An assessment turns the research into your shortlist.

Readings are taken in the rooms you actually use, bedrooms first in most homes, and explained on site as they are taken.

In person in Calgary and Edmonton, or as a remote consult anywhere using a meter kit and a shared screen.

See what an assessment covers →

How a remote assessment works →

Knowing beats wondering.

The aim isn't a home with zero exposure. Nobody can promise that, and anyone who does shouldn't be trusted. The aim is a home you understand: which fields are present, where they come from, which are worth changing and which are simply part of living with modern electricity and technology.

Usually the useful changes are small: moving a device, fixing a wiring fault, adjusting a setting. That replaces a vague, ongoing question with a specific answer: this matters, this doesn't, and here is a reasonable next step.