Why can I smell damp but not see it?

Author: Napoleon Marquardt  |  Last update: Friday, May 16, 2025

Why does my apartment smell musty even though there is no visible mold? Musty odors can be caused by hidden sources of moisture such as leaking pipes, condensation or poorly ventilated areas.

What to do if you smell mold but don't see it?

When a homeowner smells mold but visual clues are invisible to the naked eye, then mold testing can be performed by a professional to locate the colonies. A mold testing kit can also be inexpensively purchased from the local hardware store and utilized by the homeowner.

Can smell damp but can't see it.?

With prolonged condensation dampness, mould spores can thrive and permeate into walls, carpets, furniture and other soft furnishings. In some cases, the actual mould growth and source of the musty smell may be hidden from view perhaps behind a wardrobe or in a cupboard.

Why do I keep smelling a damp smell?

It is possible that the musty smell is coming from damp clothing or fabrics. However, in a great number of cases, a damp musty smell is caused by mould. Mould tends to grow in areas with inadequate ventilation so you should start off by examining these areas of your home.

How do I find the source of damp smell?

Leaks are common in doorways and windows that open to the outdoors, which can lead to dampness and in turn lead to mould. Entrances to the home are therefore a likely to be a source of damp smells, so try to check around the doorway for signs of mould.

Helpful Ways to Identify Odors Inside Your Home

How to figure out where a musty smell is coming from?

Around windows where condensation could gather. Behind or under any storage areas that do not get a lot of traffic. Other places you should check for mildew, mold, or moisture are in your air conditioning and heating ducts, inside and around your washer and dryer, and in the walls and ceiling around your home.

How do you find out where damp is coming from?

Here's some of most common source of entry:
  1. Check for gaps or cracks in gutters and downpipes.
  2. Check for signs of water ingress on your roof space such as wet timber.
  3. Check for gaps or cracks in doors and window frames.
  4. Check for ageing porous brickwork.

Can a house smell musty without mold?

Humidity in the air is often the cause of mold, but it can also cause a strong smell even if no mold has formed. Dehumidifiers fix this issue, as does proper ventilation. However, in colder months especially, it may not be feasible to vent the entire house.

Why does my body smell damp?

Body odor is caused by a mix of bacteria and sweat on your skin. Your body odor can change due to hormones, the food you eat, infection, medications or underlying conditions like diabetes. Prescription-strength antiperspirants or medications may help.

What does Parkinson's smell like?

Parkinson's disease body odor (PD BO) is more musty, smelly, and unpleasant. BO could potentially be used to screen for PD patients. Perillic aldehyde, hippuric acid, eicosane, and octadecanal comprised artificial PD BO.

What else smells like damp?

Damp smells are usually caused by mold, mildew, or moisture accumulating in a stuffy part of the home. Not only is the smell unpleasant and embarrassing, but it is also unsafe for your health. Sometimes the source or area affected by damp smells can be obvious, like stains on the walls that indicate a broken pipe.

Why can I smell a musty smell but no one else can?

Phantosmia may be caused by a head injury or upper respiratory infection. It also can be caused by aging, trauma, temporal lobe seizures, inflamed sinuses, brain tumors, certain medicines and Parkinson's disease. Phantosmia also can result from a COVID-19 infection.

What does damp smelling mean?

Use the word musty to describe an unclean, stale, and possibly moldy smell. If something smells musty that means it's probably been sitting in a damp corner without any air for a little too long. Musty smells take time to develop: they're caused by dampness and mold, and signal some amount of decay.

How can you detect mold without seeing it?

Musty Smell

If you don't see signs of mold, but you can smell it, it may be hidden in your walls. A musty smell indicates that mold is growing in your home. The smell of mold feels earthy, like rotting leaves or decaying wood in a dense, damp forest.

What does hidden mold smell like?

The most common description people give is that mold smells musty, like damp clothes forgotten in a washing machine. Some even say it smells earthy, like rotting wood or wet soil. If you walk into a basement or bathroom and catch that smell, there's a good chance mold is lurking.

What are signs of mold sickness?

Although symptoms can vary, the most common symptoms seen in people exposed to mold indoors include:
  • Nasal and sinus congestion.
  • Eye irritation, such as itchy, red, watery eyes.
  • Wheezing and difficulty breathing.
  • Cough.
  • Throat irritation.
  • Skin irritation, such as a rash.
  • Headache.

What does kidney disease body odor smell like?

A change in body odor can be a sign of kidney disease. In kidney disease, the kidneys may not be able to break down urea, which the body excretes through urine or sweat. This can have a vinegar-like smell. According to The National Kidney Foundation, over 37 million American adults have kidney disease.

Why are my pants always wet and smelly?

Many people find that they suffer from urge incontinence or stress incontinence, particularly as they age or after having children. This incontinence means that urine leaks onto your pants, causing an ammonia smell.

Why do I smell mold when there is none?

Phantosmia refers to detecting smells that aren't really there. It's a symptom of many common conditions, including allergies, colds and upper respiratory infections. It could also indicate a brain-related condition, including epilepsy, stroke or Alzheimer's disease.

Why does my house smell like mold but I can't find it?

If you weren't able to identify where the moldy smell is coming from, the mold might be growing in hidden areas like ducts, air vents, HVAC, attics, or walls. Check humid and damp areas in your home where mold might be hiding. If these methods fail, consult a professional to inspect your home for mold contamination.

How to find the source of musty smell?

How to find the source of musty smells
  1. Look under all of your sinks for leaks or water build-up that may have caused mold or mildew growth and scrub these areas with mild bleach or vinegar solutions. ...
  2. Examine your showers for mold or mildew. ...
  3. Clean your garbage disposal and scrub your dishwasher filter.

How to test for mold in a house?

The two most common methods used to identify a mold problem are mold test kits or air testing sensors. These kits include the necessary air test devices, chemical strips, or Petri dishes and are available at department stores or online. They'll also come with an instruction manual for any brand-specific guidelines.

How to test dampness in a house?

Foil test: If you've noticed a damp problem but aren't sure if it's caused by condensation or penetrating or rising damp, you can use a foil test. Tape a square of aluminium foil to the wall and leave it there for a day. On inspection, if the side facing away from the wall is wet, you have an issue with condensation.

Will a dehumidifier get rid of damp?

Dehumidifiers seem to be the obvious way of reducing humidity, removing condensation, stopping walls becoming damp and preventing mould. But a more effective solution is to give your home a small but consistent background movement of fresh air. This will help keep your home feeling fresher, healthier and mould free.

How to get rid of dampness in a house?

Use dehumidifiers and air conditioners, especially in hot, humid climates, to reduce moisture in the air, but be sure that the appliances themselves don't become sources of biological pollutants. Raise the temperature of cold surfaces where moisture condenses. Use insulation or storm windows.

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