Common Sources of EMFs in Your Children’s Room (Free Guide for Parents)

Updated 29 October 2026

“What if the safest place in your home for your child is the most harmful?”

In this guide, you will find common sources of EMFs in children’s rooms and nurseries.

I write not only what these sources are, but why some might be more harmful than others. I also share the actions you can take to reduce your children’s exposure to these man-made EMFs.

As a mother and building biologist, my aim is to remove and eliminate toxic sources completely to reduce the body burden on our children, especially during critical developmental phases.

These are changes you can make immediately. For a peace of mind and true health for your child and yourself.

To your space.

Common Sources of EMFs

You probably already know about wireless devices and that power line and cell antenna down the road.

But artificial electromagnetic fields are everywhere within your own home. These devices in the bedroom emit electromagnetic fields that could affect your child.

Your child’s optimal development depends on critical growth stages. Your child’s bedroom deserves the lowest possible EMF levels.

1.Wireless baby monitors

Baby monitors are marketed as a mama’s must-haves. These fancy gadgets let you check on your baby on your smartphone, from anywhere.

Some include features like night vision, alerts, temperature monitoring, and two-way talk. Baby monitors can be Wi-Fi, radio (no internet), audio, and app-based.

But they send audio, and sometimes video, from a transmitter near your baby to a receiver using radio signals (typically 2.4 GHz). Your baby or child is in these near radio frequency fields for 10-12 hours a day, while they are sleeping, if not longer.

Baby monitors promise “connectedness”, but you’re relying on wireless radiation to make the connection, adding to EMF pollution in your child’s room.

Eliminate artificial EMFs in your child’s bedroom: Hardwire your baby monitor instead.

2. Wireless security cameras

Like baby monitors, these emit RF fields around your children while they sleep.

Eliminate artificial EMFs in your child’s bedroom: Hardwire any security cameras.

3. Wi-Fi

Wi-Fi routers emit EMFs constantly, even if no one is using the internet.

Removing Wi-Fi in the bedroom is fundamental to creating calm and safe environment for a night’s sleep. Eliminating Wi-Fi during the day, too, is a great way to reduce your newborn’s EMF exposure.

Eliminate artificial EMFs in your child’s bedroom: Hardwire Wi-Fi. Remove the router from your bedroom.

4. Fans

The motors in the fans put out sizeable magnetic fields as well as electric fields.

Magnetic fields are how fans work. The electric current flows through the motor's coils, generating a magnetic field interacting with another magnetic field, creating a force that causes the motor's shaft to rotate. This pulls the rotor around via magnetic attraction.

Magnetic fields do drop off with increasing distance, so make sure to put as much distane as possible between the fan and where your child is sleeping.

Eliminate artificial EMFs in your child’s bedroom: Use a meter such as a Trifield that has both a gaussmeter (for magnetic fields) and an electric field meter.

5. Adjustable tables

Adjustable tables are powered by pretty strong electrical motors. They rely on a transformer in order to convert the power.

Eliminate artificial EMFs in your child’s bedroom: If you must use an adjustable table, one workaround is to cut the power to the table when you are not using it.

6. Dimmer switches

You want to control the level of lighting in your child’s room, but dimmer switches emit 10 to 50 times more EMF than regular on/off switches due to their electronic components.

By design, dimmer switches interrupt electrical current by “chopping” the electrical waveform to lower light intensity.

Some turn the light bulb circuit on and off as many as 120 times a second. This puts out high-frequency voltage transients into your home wiring that radiate into the room as well as other rooms!

Dimmer switches have been measured to put out dirty electricity even when they turned “fully on”.

Eliminate artificial EMFs in your child’s bedroom: Replace dimmer switches with standard on/off switches to eliminate a direct source of EMF pollution in your home. Avoid smart switches.

7. Bedside Clocks

Often emit low-frequency EMFs. Many clocks produce measurable magnetic or electric field radiation, as well as circadian-disrupting blue light. These are up to 20 times above recommended “safe” levels at the bed.

Some even have Wi-Fi, or Bluetooth functions built in.

Battery-powered models put out far less EMFs than plug-in digital clocks. But 100% EMF-free alarm clocks use no electricity or batteries. Only mechanical wind-up clocks are EMF-free.

Eliminate artificial EMFs in your child’s bedroom: Choose analog alarm clocks or even mechanical wind-up clocks.

8. Electrical wiring

Currents along wiring emit low-frequency EMFs, even when devices are turned off. So long as you’re in a house, to the extent of the wiring, you are likely surrounded by such EMFs.

Eliminate artificial EMFs in your child’s bedroom: Use a meter such as a Trifield that has both a gaussmeter (for magnetic fields) and an electric field meter.

9. Smart toys

You can find RF chips in all sorts of things these days, including in toys. The idea is that you can these toys with phones and also communicate with other smart toys in the product line.

Children should not be playing with phones. You don’t want smart toys next to children, especially when they sleeping, as the toys may be accidentally turned on.

Eliminate artificial EMFs in your child’s bedroom: The safest (and easiest) thing to do is to remove these toys. How do you know if you have a smart toy? Batteries are a giveaway, because RF chipped toys need them to operate.

10. Baby rockers

Like baby monitrs, these devices can come with smart features, multiple motions, and parent-friendly designs—anything to promise your child’s sweet sleep.

However, the rocking mechanism and elevated electric fields from the wiring create high levels of EMFs.

11. Cell phones

Wireless mobile devices emit high levels of EMF whether you are using them or having them plugged in and charging near baby areas.

12. Smart home devices

Do you have these? Smart appliances such as humidifiers, sound machines, night lights, voice assistants, smart thermostats, and connected baby products…

Eliminate artificial EMFs in your child’s bedroom: Hardwire devices, if you must use them in the room.

13. Laptops

Work-from-home has become normal. You might keep your laptop in the bedroom.

I only use mine with I will only use it with an ethernet cable. But even with Wi-Fi or Bluetooth turned off, I’ve measured other high EMFs.

Eliminate artificial EMFs in your child’s bedroom: Hardwire devices, if you must use them in the room.

14. Spring mattresses

Technically, spring mattresses are not emitting EMFs by themselves. However, they attract ambient magnetic fields and electric fields where you’re sleeping.

They’re especially a concern if you are very sensitive. Or if you are a child more vulnterable to the effects of EMF radiation. It is hard to quantify or have an exact number on how much radiation spring mattress can emit, due to the fluctuations in the environment. Suffice to say, given how much time we spend on a mattress, you want to take this into consideration.

15. Ethernet cables

Ethernet cables enable us to use the Internet without exposure to Wi-Fi. But even shielded cables can measure high in electric fields.

Eliminate artificial EMFs in your child’s bedroom: Keep them at least 1 or 2 feet away from your body.

More about EMFs

Congratulations on going through the list.

Here’s a quick downloadable PDF. Click on the image to save.

Common Sources of EMFs in Your Children’s Room (Free Guide for Parents)

You can see how you do not need major renovations or expensive tools to reduce EMFs in your child’s bedroom.

By now you are becoming aware of the major types of EMFs. Here is an introduction to EMF radiation.

Measuring EMF Levels in Your Child’s Bedroom

If you want to go a step further, a Building Biologist will assess your whole space. The key areas include:

1. Crib measurements. Measure every area of the crib at mattress level. Pay attention to the head area where your baby’s head will lie. Take multiple readings throughout the day.

2. Changing area assessment. Measure EMF levels at your changing station, especially if it is near electrical outlets or wireless devices.

3. Feeding locations. Where do you sit and feed for hours? Check your primary feeding areas, whether it is a nursing chair or where you sit and breastfeed, prepare milk, and/or pump breastmilk.

4. Play area evaluation. Babies grow so fast, and they’re usually rolling and crawling by six months. I measure EMF levels to help you identity optimal areas for tummy time and play activities.

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Do you want to know more? I expand on these in my ebook “The Building Biology Home: Guide to Creating A Calm and Safe Bedroom”. You’ll learn:

• Why building EMF-awareness habits is crucial for your children’s health

• The science on EMFs, optimal development, and children’s critical growth stages

• The daily routines to start now to protect against EMFs

• Pro tips for maximum effectiveness, including EMF protection products

• Frequently asked questions about EMFs and children

• How-To-Guide: Use an EMF meter to measure electric fields, magnetic fields, and radiofrequency radiation in your nursery

This is your essential EMF protection guide for mothers and fathers seeking to create a safe and optimal space for their children. I’m a mother and I understand your concerns. You will not find fear-mongering or a sales pitch for gadgets.

Every tip is something you can understand and implement today. Every strategy effectively reduces exposure while helping you become a better parent during these precious early years.

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Sneaky Places At Home Hiding Toxic PFAS Forever Chemicals

By now you’ve heard about PFAS chemicals - the “forever chemicals” most notably associated with non-stick cookware. Its also with plastics pollution and endocrine dysfunction.

But PFAS can be found in many common household items and it is linked to many chronic diseases down the line.

If you have infants or toddlers at home, it's especially important to consider the chemicals that could be in your carpet. For example, rugs are a major source of PFAS exposure for little ones who are likely to put their hands in their mouths after touching the material. 

What are PFAS?

Per- and polyfluoroalkyl substances, or PFAS, is a class of thousands of man-made substances that are common in everyday objects. Peer-reviewed studies have linked them to some cancers, decreased fertility, thyroid disease, and developmental delays, among other health issues.  linked to serious health issues like testicular and kidney cancer, liver damage, thyroid disease, and more, are also hiding out in some pretty surprising places in our everyday lives.

Thanks to their super-strong carbon–fluorine (C–F) bonds, PFAS are extremely stable, making them persistent and resistant to degradation.

PFAS last for decades without breaking down, earning them the "forever chemicals" nickname.

Sneaky places at home that hide PFAS

It may be impossible to completely avoid PFAS, but there are a few simple ways to reduce your exposure. By tackling some of the sneaky places they hide:

Wall paint: One study at Duke University last year found PFAS in six of 10 popular paint brands sampled. The study also determined that in some brands there was off-gassing of PFAS, which reduces the overall concentration of the chemical in the paint on the wall, but disperses it into the air, where it can be inhaled.

Food packaging: PFAS were developed in the 1940s to resist heat, grease, stains, and water. That means they've ended up in a lot of food packaging. That includes pizza boxes, microwave popcorn bags, some wrappers, and grease-resistant paper.

A 2019 study found that people had lower PFAS levels in their blood after eating at home, and higher levels after eating fast food or at restaurants.

Nonstick cookware: The coating used in nonstick cookware usually contains PFAS, and they can easily leach into your food at high heat and once the coating gets scratched.

In fact, overheating nonstick cookware at 570°F or higher leads to the release of harmful chemicals that can cause an illness called "Teflon flu," or polymer fume fever.

In makeup: Cosmetics that are smoothing, long-wear, or waterproof are the ones most likely to contain PFAS chemicals. Without it, your mascara would run. It's a good idea to read ingredient labels (look for any ingredients with ‘fluoro’ in the name).

The Green Science Policy Institute keeps a list of PFAS-free products, including cosmetics brands.

In dental floss: for years, dental floss brands have used PFAS chemicals, which is concerning since it’s a product that goes in our mouths! A 2019 study found that women who flossed with Oral-B Glide had higher levels of a specific PFAS chemical in their blood than women who didn’t use that particular floss. Make sure your floss is PFAS-free!

Soft contact lenses: a random sampling of 18 popular brands of soft lenses sent to an Environmental Protection Agency (EPA)-certified lab all tested positive for PFAS, short for per- and polyfluoroalkyl substances.

Menstrual care products: Mamavation and Environmental Health News conducted a study of PFAS in menstrual care products, including tampons, pads, sanitary napkins and period underwear, and found most of them contaminated to one degree or another with the forever chemicals.

Clothing and textiles: One of the ways fabrics become water resistant is by using PFAS chemicals! Jackets, raincoats, backpacks, and other outdoor gear are often treated with these chemicals.

These fabrics shed fibers that can travel through the house as dust, eventually getting ingested or inhaled.

These same chemicals are used in stain-resistant treatments for upholstered furniture, carpeting, and even curtains. There’s no easy way to know if your items have been treated, especially if they’re older. When it comes time to replace them, seek out brands that don’t use PFAS chemicals.

House dust: Those floaters in the air you see are made up of many things, including chemicals breaking down from various household products, including PFAS. One study found that certain PFAS chemicals were detected in 97-100% of samples! One straightforward solution is to keep your house as clean as possible. Use a water-damp cloth to remove dust (referred to as wet dusting), is a simple way to lower PFAS exposure in your home. lingers in the air and allows humans to breathe the chemicals into their lungs or ingest them. By cleaning regularly, along with opening windows to allow for airflow and ventilation, you can keep dust levels low in your home and reduce the amount of PFAS you swallow.

Tap water: Communities located near military bases, such as Newburgh, New York, often find their water supplies contaminated with PFAS. The pollution can also affect local fish populations and the people who eat them.

PFAS levels in community tap water in Massachusetts reveals a trend of increasing contamination, with total fluorinated compounds exhibiting a 5- to 320-fold rise over 25 years.

People living near military bases are more vulnerable to water contamination. For example, it emerged through internal U.S. documents obtained by journalist Jon Mitchell for The Japan Times that accidental leaks of PFOS-containing fire extinguishing foam at Kadena Air Base may be linked to the contamination of drinking water on the island.

Cellphones / Fingerprint-resistant smartphone screens: PFAS are used in pretty much anything to make things more resistant to grease and water. The circuit boards, semiconductors, and insulated wiring that use PFAS, as well as the touch screen, which has PFAS coating to resist fingerprints.

Studies on quats: Can Hand Sanitisers Harm Your Fertility?

“Quats,” short for quaternary ammonium compounds. They’ve been part of cleaning products for decades.

Because they were invented before most toxin regulations came into place, quats are mostly “grandfathered” into the chemicals used today.

Researchers are finding more and more about the harms of quats, including on fertility. In this article, we go over what research has found out about quats.

According to a pivotal study by researchers from Virginia Tech University and the Edward Via College of Osteopathic Medicine, quats is a common ingredient in cleaning supplies that undermined fertility in both male and female mice.

the study

For the study, the researchers exposed female and male mice to quats. These were a mixture of two common quats  – alkyl dimethyl benzyl ammonium chloride (ADBAC) and didecyl dimethyl ammonium chloride (DDAC).

After five weeks of daily exposure to the quat mix, female mice spent significantly less time in heat, and after eight weeks of exposure, ovulated less frequently and produced fewer viable embryos than female mice in the control group, the scientists reported.

They found that quats appeared to impair the reproductive systems of male mice even more dramatically.

quats were used to clean the mice cages and floors

The scientists fed small amounts of the quat mix to one group of male mice for eight days.

A second group of males wasn’t dosed deliberately but for seven weeks was housed in a facility where lab staffers conducted routine cleaning with the disinfectants.

In both groups, the male mice showed lower sperm concentrations and fewer swimming sperm than a control group of mice that was not exposed to the two quat chemicals under investigation.

You can read the study published in the journal Reproductive Toxicology here.

quats harm on fertility

This adds to earlier studies linking quats to fertility risks. An earlier study by research teams from Virginia Tech and Washington State University, found that female mice exposed to the quat combination took longer to achieve pregnancy, developed fewer pregnancies. and gave birth to smaller litters.

That December 2014 study has an interesting origin story. One of its lead researchers, Hrubec, noticed that the mice in her lab were reproducing less frequently. She only discovered the link after suspecting her lab assistants’ habit of wetting their hands with quat-laced disinfectant before handling the mice!

That brought Hrubec to an article in the journal Nature about Patricia Hunt, a prominent geneticist at Washington State, who had made similar observations in her own lab in 2005.

(Hunt is famed for another lab accident, back in 1998, that led her to discover that the endocrine-disrupting chemical bisphenol A was leaching from her lab animals’ plastic water bottles into their bodies. She told EWG in 2008 that BPA exposure scrambled the chromosomes in the animals’ eggs, rendering them infertile.)

post-pandemic increase in exposure to quats

During the pandemic, many people loaded up on disinfectants, hand sanitizers, and sanitizing wipes to keep possible viruses at bay.

It even changed many people’s habits to preferring sanitisers over simple hand washing, believing that the chemical wash helps them avoid getting sick.

However, now people are exposed to quats because of widespread use of these chemicals in homes, offices, stores, schools, medical facilities and elsewhere. EWG’s research on school cleaning supplies revealed quat-containing cleaners used in multiple school districts in California.

Quats are well-documented allergens and can cause otherwise healthy individuals to develop asthma.

It is highly ironic if, in a bid to rid ourselves of exposure to possible viruses, we expose ourselves to definite toxins and develop lung diseases and breathing difficulties instead.

References

1. Exposure to common quaternary ammonium disinfectants decreases fertility in mice, https://www.sciencedirect.com/science/article/abs/pii/S0890623814001920

2. EWG’s Guide to Healthy Cleaning lists more than 250 cleaning products that contain quats.

Study: Scrotal temperature is increased in disposable plastic lined nappies

The one study that does give cloth diapers a leg up in health benefits for baby boys appeared in the October 2000 issue of the Disease in Childhood medical journal. In that article,

Disposable plastic-lined nappies have a long line of problems.

The study

German researchers measured the scrotal skin temperature in 48 healthy children aged 0–55 months (three age groups) for two 24 hour periods in randomised order (either cotton or disposable plastic lined nappies) using a portable, miniature recorder.

They found that the scrotal skin temperatures of baby boys were significantly higher when they wore disposable diapers than when they wore cloth.

They highlighted how the usual physiological testicular cooling mechanism is blunted and often completely abolished during plastic nappy use. Your baby’s bits are not able to regulate itself in a hot plastic nappy.

Higher scrotal temperatures, lower sperm counts

They suggest that prolonged use of disposable diapers as infants was an "important factor" contributing to the decline of sperm production among adult males. To make healthy sperm, you need a good environment for the sperm-producing parts of the body; that is, scrotal hypothermia is an important factor for normal spermatogenesis.

“Male reproductive health has deteriorated in recent decades. (…) increased testicular temperature in early childhood, due to the use of modern disposable plastic lined nappies (diapers), could be an important factor contributing to this decline.”

The interesting thing is that Proctor & Gamble conducted its own study and also found that scrotal skin temperatures increased for boys in disposable diapers.

References

1. Partsch C, Aukamp M, Sippell WG. Scrotal temperature is increased in disposable plastic lined nappies. Archives of Disease in Childhood 2000;83:364-368.

Study: Tight Underwear Harms Spermogenesis

Men who wear boxer shorts have higher sperm concentrations than men who wear tighter fitting underwear, according to recent research published in the journal Human Reproduction.

You can tell the fertility of a man by the underpants he prefers to wear, as researchers continue to gather data on how the style (and material) of underpants affect testicular function (i.e., sperm production).

The study

Researchers surveyed 656 male partners of couples seeking infertility treatment at a fertility center (this was in Boston, MA, USA, between 2000 and 2017). The men were an average age of 35.5 years old.

They completed a questionnaire on what style of underwear they had most frequently worn during the last 3 months using the following categories: ‘boxers’, ‘jockeys’, ‘bikinis’, ‘briefs’ or ‘other’.

For those of us unfamiliar with men’s fashion, the definitions were: "jockeys are longer than briefs, with length falling right above the knee, briefs generally extend to the middle of the thigh.”

They then analysed the men’s semen samples for reproductive hormone levels and neutral comet assays for sperm DNA damage.

What did the study conclude?

They found the type of underwear worn was significantly associated with sperm concentration, total sperm count and total motile count (Table II).

Compared to men who reported not usually wearing boxers (e.g. wore tighter underwear), men who reported most frequently wearing boxers had 25% (95% CI = 7, 31%) higher sperm concentration, 17% (95% CI = 0, 28) higher total sperm count and 33% (95% CI = 5, 41%) higher total motile count.

Men who reported most frequently wearing boxers also tended to have a higher percentage of motile sperm and a higher sperm count, compared to those who did not, although these differences failed to reach statistical significance (check out Table II in the study).

When all the non-boxer underwear types were examined separately, the largest differences in sperm concentration were found for men who reported wearing jockeys and briefs compared to those wearing most frequently boxers.

The differences were less pronounced with other types of underwear (Supplementary Fig. S1).

Men who reported most frequently wearing boxers had higher sperm concentration and total count, and lower FSH levels, compared to men who did not.

Boxer-wearing men had lower FSH hormones

Boxer shorts-wearing men had lower levels of follicle-stimulating hormone (FSH), compared to men who most frequently wore briefs, "bikinis" (very brief briefs), "jockeys" (underwear that finishes just above the knee) or other tight-fitting underwear.

Though FSH stimulates sperm production, the researchers say that these findings suggest that it kicks into gear when it needs to compensate for testicular damage from increasing scrotal temperatures and decreasing sperm counts and concentration.

The impact of material

It goes without saying that the clothing (shirts, trousers and undertrousers) can effect heat regulation.

The type of material also affects heat regulation, as well as at least one other mechanism: electrostatic regulation. Check out these studies on how polyester underwear reduce sperm health.

Men’s fertility epidemic

Researchers have been raising the alarm on the plummeting sperm levels across Western societies in the last century. Environmental and lifestyle factors have been directly linked to poorer testicular function, such as increased exposure to endocrine disrupting chemicals (Bergman et al., 2013; Hauser et al., 2015), higher prevalence of obesity (Finucane et al., 2011; Sermondade et al., 2013), deteriorating diet quality (Wong et al., 2000; USDA, 2017) and elevated scrotal temperatures (Ahmad et al., 2012; Zhang et al., 2015), among others.

Sperm production takes about three months from start to finish, so take the action to switch out your wardrobe, as it may take that long for your sperm quality to improve. For a long time the spotlight (and burden) lay pretty much on female fertility. However, a male fertility crisis has been looming, perhaps just below sight.

If you found this study interesting, check out my full guide to EMFs and your microbiome. It’s free, and you’ll find facts and resources on how electromagnetic fields can impact very basic cellular functions in your body.

References & Resources:

1. Link to the study: Lidia Mínguez-Alarcón, Audrey J Gaskins, Yu-Han Chiu, Carmen Messerlian, Paige L Williams, Jennifer B Ford, Irene Souter, Russ Hauser, Jorge E Chavarro, Type of underwear worn and markers of testicular function among men attending a fertility center, Human Reproduction, Volume 33, Issue 9, September 2018, Pages 1749–1756, https://doi.org/10.1093/humrep/dey259

2. Read how polyester underwear lowers sperm counts https://www.melaniechua.com/blog/2023/study-polyester-underwear-decreases-sperm-count-and-motility