Health > Personal Stories

"My Husband Coughed Every Night for Months — Until I Found Out What Was Living in Our Air."

Monika R., a 67-year-old retired teacher from Hannover, always thought her home was clean and healthy — the kind of place her grandchildren — Lina and Paul — loved to visit, and where her husband Klaus insisted everything was "perfect just the way it is."

 

She vacuumed the carpets. Changed the sheets every week. Opened the windows for fresh air.

 

But lately, something had changed.

 

It started when Klaus developed a deep, stubborn cough.

 

At first, he brushed it off.

"It's nothing. It's the weather.”

"I'm fine. I'm just not a young man anymore."

Classic Klaus — too proud to go to the Hausarzt over something he thought was nothing.

 

But it kept getting worse.

 

He'd wake up in the middle of the night coughing so hard she felt the mattress shake. She'd find him sitting on the edge of the bed, hunched over, hand pressed against his chest, trying to pull in air. Still insisting he didn't need help.

 

But deep down, Monika felt the dread growing.

 

One night, the coughing got so violent that Klaus doubled over, both hands gripping the mattress edge, trying to steady himself. His face went red. His breathing turned shallow. He shook with every attempt to pull in air.

And in that moment, Monika realized:

 

This wasn't age.

This wasn't just the weather.

This wasn't "just a cough."

 

Something inside their home was making him sick.

 

And she could feel it creeping into her own chest too — a blocked nose every morning, a scratchy throat that wouldn't leave.

 

"This can't go on like this."

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The next morning, Monika sat down at the laptop and typed: "Chronic cough causes apartment”.

According to the Umweltbundesamt (German Federal Environment Agency), house dust mites are among the most common triggers of respiratory irritation in indoor spaces.¹ They live in mattresses, pillows, carpets, upholstered furniture — everywhere warm and soft.

Monika had heard of dust mites — of course, who hasn't. But what she didn't know:

 

It's not the mites themselves that make you sick. They feed on dead human skin cells — and their droppings contain an allergy-triggering protein called Der p 1.²

These particles can linger in your indoor air for years.

 

So light that they float in the air — like invisible smoke. You breathe them in. Every night.

 

And it's not just sneezing and congestion. Medical researchers warn that Der p 1 isn't merely irritating — sustained inhalation can lead to decreased lung function and increased susceptibility to respiratory infections.

According to the Fraunhofer-Gesellschaft, sustained exposure to dust mite allergens can increase the risk of asthma by up to five times — especially in adults over 50 and young children.³

And right now in spring, it doesn't get better.

 

The windows open again, and with the fresh air come pollen: birch, hazel, grasses.⁴

 

The mite allergens inside stay anyway.

 

She thought of Lina and Paul — how they had played on the living room carpet last Sunday. And then she thought of Klaus. His face going red in the night. His hands gripping the headboard. The cough that shook the mattress while she lay there, useless, counting the minutes.

 

She was horrified.

 

This home — the one she had spent forty years keeping clean, the one her grandchildren ran through on Sunday afternoons — had been making him sick. Right here. In their own bedroom. The whole time.

 

"I wish I had known this sooner."

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That evening, Monika cleaned the entire apartment — but the next morning, it was worse.

 

Klaus was already coughing when he woke up, his voice was raw, and the air felt heavier than before. Vacuuming and wiping stir up the allergens instead of removing them.⁵

 

In the days that followed, she threw herself into trying everything she could think of.

 

She went to the Apotheke first. Cetirizin and a nasal spray. Klaus took them reluctantly — "If you insist."

 

A week passed. The cough was exactly as it had been. She was treating the reaction, not the cause. The mites were still there, still producing Der p 1 every single night.

 

She started airing the apartment three times a day — ten minutes of burst ventilation each time, even in the cold. Fresh air came in. But a few hours later, the air in the bedroom was just as heavy as before. She was moving the problem around, not solving it.

 

She drove to MediaMarkt and looked at air purifiers. Philips, Dyson — €350 to €600 before replacement filters. New cartridges every few months, €60 to €80 each. And the devices were enormous. She stood in the aisle and imagined one in the corner of their bedroom — the noise, the size, Klaus's face. She drove back empty-handed.

 

She called a professional cleaning service. Mattresses, upholstery, carpets — the full treatment. The quote was over €500. For one visit. And the woman on the phone mentioned, almost as an aside, that the mites would likely be back within weeks anyway.

 

Weeks passed. Nothing helped. And Klaus was still coughing.

 

Monika had run out of options. Spend money they didn't have on treatments that wouldn't last — or accept that this was simply how the rest of their life together was going to sound.

 

"Maybe I just have to accept that this is how it is."

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Over coffee with her friend Brigitte one Tuesday — like every other — she mentioned her daughter-in-law in Hamburg, who had given her and Werner a small device.

"A little thing you plug into the socket. For dust in the air, she said. I don't exactly know how it works — but Werner has barely been coughing. For a few weeks now."

"I have a spare one at home," she said. "My daughter-in-law sent us three. Should I bring it over for you?"

Monika hesitated.

"If it's no trouble."

Two days later, a small, white device sat on Monika's kitchen table.

On the packaging it read: Nordee Air Ionizer.

 

That evening, Monika plugged the device into the socket next to the bed — on her side, behind the nightstand, where Klaus wouldn't see it.

 

She didn't tell him.

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The first night, she noticed nothing. The cough came as usual.

 

On the third day, the air in the bedroom smelled different. Fresher. Lighter.

 

On the fifth day, Klaus slept through the night. For the first time in months. Monika lay awake — out of habit — and waited for the cough that didn't come.

 

In the second week, Monika woke one morning and lay still. Something was different. Her nose was clear. No scratching in her throat. She reached for the tissue on the nightstand — and didn't need it.

 

In the third week, Klaus said at breakfast:

"I don't know what's changed. I haven't coughed in days."

Monika took a sip of her coffee.

"Maybe it's the weather."

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What actually changed the air in Monika's bedroom

The Nordee device works with what's called ionisation technology — a method that has been used for years in hospitals and clinics, where clean air isn't an option but a necessity.⁶

 

The device releases negative ions into the room's air. These attach to invisible particles — dust mite allergens, fine particulates, pollen, pet dander — and make them heavier, until they fall out of the air.⁷

The result: nearly 100% of all airborne particles are removed from the air you breathe.

 

Ionisation technology is studied and used in Germany by institutions including the Charité Berlin and the Fraunhofer Institute for Building Physics.⁸

Nordee works without filters. Without noise. Without ongoing costs. The size of a nightlight — you plug it in, and it works. Around the clock.

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After a month, Klaus slept through. Not every night, but most. Monika slept better too — because she no longer lay awake listening.

 

She ordered two more devices.

 

One for the living room.

One for the guest room where the grandchildren slept.

 

One Saturday afternoon, Lina and Paul came to visit.

 

Klaus was sitting on the floor next to Lina, building a tower out of blocks.

 

He didn't cough a single time.

 

Monika watched from the kitchen doorway.

 

Her daughter said on her way out:

"It smells different in here somehow. Fresher."

Monika shrugged.

"I had the windows open."

But the windows had been closed.

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What other women are saying

In recent months, over 47,000 households in Germany and Austria have chosen Nordee — so many that the manufacturer was temporarily unable to deliver last winter.

 

Some experiences that reached us as an editorial team:

Renate K., 64, from Düsseldorf:

"My husband has had this cough for 15 years. No doctor could help. No medication worked. I plugged this small device into the socket, and after one week he slept through the night for the first time. He doesn't even know it's there."

Hannelore M., 71, from Graz:

"I first ordered it for the bedroom, thinking I'd just give it a try. After two weeks, my cough was gone — not less, gone. My daughter noticed before I did. Now there's one in the living room and one in the children's room."

Ingrid W., 66, from Hamburg:

"I was skeptical. Very skeptical. A device this small is supposed to do what a €400 air purifier couldn't? Then my Hausarzt mentioned indoor air quality in passing during a check-up — not as a recommendation, just a comment. That evening I looked it up. That's how I found Nordee. After ten days, I slept for the first time in years without a tissue box next to the bed."

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Editorial test: Four weeks with the Nordee Ionizer

When Monika's story reached us, we wanted to try it ourselves.

 

Our editor Sabine Hartmann tested the device in her own household for four weeks.

Week 1

I'll admit: I was skeptical. A device barely bigger than a nightlight is supposed to clean the air in a room? I plugged it into the bedroom socket anyway.

 

First morning: no difference.

Second morning: same.

 

It wasn't until the fourth day that I noticed I hadn't woken up during the night. No sneezing, no dry throat. Was it the device? I wasn't sure.

Week 2

Now it became harder to ignore. The air in the bedroom actually felt different — lighter, less stuffy, even in the morning.

 

My husband, who knew nothing about the test, said at breakfast:

 

"Did you buy new bedding? Something's different."

 

I didn't tell him what it was.

Week 3

I placed a second device in the living room. The difference was more noticeable there.

 

After a week, my sister visited and said:

 

"It smells like you've been airing out."

 

We hadn't.

Week 4

After four weeks, I can say:

 

The air in both rooms feels different.

 

Whether Nordee is the reason, I can't say with one hundred percent certainty — that would require a controlled study. But the change is there.

 

My husband sleeps more peacefully. And the nights I lie awake have become fewer.

 

And after four weeks, I'm not giving it back.

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Our verdict

If you recognise something of your own situation in Monika's story — and nothing has worked so far — the 90-day guarantee makes it risk-free to find out.

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🌸 Spring promotion for FRAU & Heim readers

This April only, the manufacturer is offering our readers reduced prices — up to 65% below the regular retail price of €82.

1 device: €82 €49 (40% off)

3-pack: €82 €33 per device (60% off)

5-pack: €82 €29 per device (65% off) — includes free extended warranty (worth €19.90)

This promotion is available exclusively through the official Nordee website.

 

Click the button — the reader discount is applied automatically.

Claim Spring Promotion 👉

Free shipping to Germany and Austria · 90-day money-back guarantee

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Try it for 90 days

One thing must be said honestly: change takes time. Monika noticed the difference after five days. Our editor after four. Some readers report that it took two to three weeks.

 

That's why Nordee offers a 90-day trial period. Not as a marketing promise — but because real change requires patience. If it hasn't helped after 90 days, you get your money back. No questions. No fine print.

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Why does Nordee cost so little?

Nordee sells exclusively through its own online shop. No middlemen, no retail, no expensive shelf space in electronics stores. That also means: every device comes directly from the manufacturer — no risk of cheap knock-offs or low-quality imitations.

 

Most customers start with one device for the bedroom — and order one or two more after a few weeks. Once you feel the difference in one room, you want it in the others too.

Claim Spring Promotion 👉

Free shipping to Germany and Austria · 90-day money-back guarantee

P.S.

Last night I woke up at three in the morning. Out of habit.

I listened. Silence.

Klaus was sleeping. Quietly. Steadily.

I turned over and fell back asleep.

— Monika R.