Mold in Da Nang: The Hidden Health Problem Nobody Talks About
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Da Nang

Mold in Da Nang: The Hidden Health Problem Nobody Talks About

Linh Nguyen
Linh Nguyen
December 16, 2025 7 min read 33

Mold is a serious hidden problem in Da Nang apartments due to 70-90% humidity year-round. It causes skin issues (acne, rashes), respiratory problems, and can ruin your belongings within weeks. Before signing a lease, check for musty smells, black/green spots on walls, and paint peeling - if you see any signs, find a different apartment. This is not negotiable. Here is how to protect yourself.

Why Mold is So Common in Da Nang

Da Nang's tropical climate is perfect for tourism. It's also perfect for mold.

The city gets:

  • High humidity year-round (70-90%)
  • Intense monsoon rains (especially May-September)
  • Limited air circulation in older buildings
  • Poor drainage in many apartment complexes
  • Landlords who don't maintain properties properly

The result? Mold grows. A lot. In walls, in closets, in bathrooms, behind furniture, inside air conditioning units, even in your clothes if you don't wash them frequently enough.

The problem is that most rental contracts don't require landlords to maintain mold-free conditions. And many expats don't discover the problem until their health starts suffering.

How to Spot Mold Before You Sign a Lease

Visual signs:

  • Black, green, or white spots on walls or ceilings
  • Discoloration in corners or along baseboards
  • Musty smell (this is the most reliable indicator)
  • Staining around window frames or air conditioning units
  • Paint peeling or bubbling on walls
  • Visible damage to drywall or wood

What to do:

  • Visit the apartment at different times of day
  • Check the bathroom thoroughly (tub surrounds, under sinks, ventilation)
  • Open closets and sniff them
  • Look behind furniture and in corners
  • Ask about water damage history
  • Ask neighbors if they've had mold problems
  • Trust your nose. If it smells musty, there's mold.

If you see any signs, find a different apartment. This isn't worth negotiating.

What Mold Actually Does to Your Body

Mold exposure doesn't just cause acne. It can cause serious health problems:

Skin issues: Acne, rashes, dermatitis, eczema flare-ups, fungal infections. This happens because mold spores are irritating your skin and your immune system is mounting a response.

Respiratory problems: Coughing, wheezing, asthma attacks, shortness of breath. If you already have asthma, mold will make it worse.

Allergic reactions: Sneezing, runny nose, itchy eyes, congestion. Some people are extremely sensitive to mold spores.

Brain fog and fatigue: Mold toxins can affect your cognitive function and energy levels. You might feel constantly tired.

Immune system stress: Your body is constantly fighting mold spores. Over time, this depletes your immune system.

The worst part: Many people don't realize mold is the cause. They just think they're sick or their skin is bad. They don't connect it to their apartment until they move and the problems disappear.

Immediate Steps If You're Already Exposed

Get out of the apartment: This is the most important step. You cannot heal while exposed to mold. Find temporary accommodation (Airbnb, hotel, friend's place) while you figure out your next move.

Document everything: Take photos and videos of the mold. Email your landlord: "I'm reporting mold damage in the apartment at [location]. I'm moving out immediately due to health concerns." Get their response in writing.

Clean your belongings: Wash all your clothes in hot water. Wipe down your luggage. Anything that was in the moldy apartment needs to be cleaned or discarded.

See a dermatologist: Get your skin checked. A dermatologist can tell you whether your skin issues are mold-related and prescribe appropriate treatment. Vietnam has good dermatologists and they're cheap.

Consider a health check: If you've been exposed for more than a few weeks, consider getting a full checkup. Mold toxins can affect your lungs and other organs.

Healing Your Skin After Mold Exposure

Professional treatments:

  • Red light therapy: This actually works for mold-related acne. It reduces inflammation and kills bacteria. Many clinics in Da Nang offer this.
  • Dermatologist treatments: Prescription retinoids, antibiotics, or other professional-grade treatments
  • Chemical peels: Can help accelerate skin recovery

At-home care:

  • OTC retinoids: These are very cheap in Vietnam (100,000-200,000 VND) and effective for acne recovery
  • Gentle cleansing: Wash twice daily with a mild cleanser
  • Sun protection: Brief sun exposure (15 minutes) can help, but too much sun is bad for acne. Use SPF 30+ if you're going out
  • Apple cider vinegar toner: 1 part ACV to 3 parts water can help kill bacteria (do a patch test first)
  • Hydration and diet: Drink lots of water, eat protein, reduce sugar, get enough sleep

Recovery timeline: Your skin won't clear up overnight. Expect 2-4 weeks to see significant improvement, and 2-3 months for full recovery after you leave the moldy environment.

Legal Options and Deposit Recovery

Here's the unfortunate reality: Vietnamese tenant law doesn't protect you from mold.

You probably won't get your deposit back. The landlord will claim you didn't maintain the property properly, or that the mold was caused by your behavior (not opening windows enough, not using the AC, etc.).

What you can do:

  • Document everything: Photos, videos, dated messages to the landlord
  • Email your complaint: Get it in writing so there's a record
  • Request medical documentation: If you see a doctor, get a statement that your condition is consistent with mold exposure
  • Negotiate: Tell the landlord you're reporting the mold to local health authorities if they don't return your deposit. Sometimes this works.

Realistically, most expats just lose the deposit and move on. It sucks, but it's cheaper than legal action.

Prevention for Your Next Apartment

  • Ask about previous mold issues: "Has there ever been mold in this apartment?" and "How long has it been empty?"
  • Run the AC and fan constantly: Air circulation is mold's enemy
  • Use a dehumidifier: Keep humidity below 60% if possible (you can buy them cheaply in Da Nang)
  • Ventilate your bathroom: Use the fan during and after showers
  • Clean regularly: Wipe down damp areas weekly
  • Check for leaks: Report any water damage to your landlord immediately
  • Store clothes properly: Keep them in sealed containers if possible, or wash them frequently

The Bottom Line

Mold is a real problem in Da Nang. It's not your fault if you encounter it—it's a tropical climate issue combined with poor building maintenance. But it IS your responsibility to protect your health.

If you discover mold, don't try to live with it and treat your symptoms. Get out. Recover. Find a new place. Your health is worth more than a deposit.

And if your skin is suddenly breaking out for no reason, and you're living in an older Da Nang apartment, the first place to look is under your furniture and behind your bedroom door.

Related Da Nang Guides

Offering quality rentals in Da Nang? List your property on ExpatsList.

Frequently Asked Questions

Why is mold so common in Da Nang apartments?
70-90% humidity year-round, monsoon rains, limited air circulation, poor drainage. Many landlords don't maintain properly.
How do I check for mold before renting in Da Nang?
Trust your nose - musty smell is key. Check for spots on walls, discoloration, paint peeling, staining around AC. If anything seems off, find another apartment.
What health problems does mold cause?
Skin issues (acne, rashes), respiratory problems, headaches, fatigue. Prolonged exposure causes serious health issues.
Written by
Linh Nguyen
Linh Nguyen
Vietnam From Hanoi, Vietnam | Vietnam Living in Da Nang, Vietnam

Marketing strategist and content creator based in Da Nang. After five years in Ho Chi Minh City's corporate scene, I relocated to Central Vietnam for a better quality of life. I write about Vietnamese business culture, hidden local spots, and building a career along the coast.

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