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Strange or unpleasant odors
Eyes, nose or throat irritation
Most indoor odor problems fall into one of these categories
Chemical or “new” smells
Often described as sweet, solvent-like, or sharp
Common sources
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Paints, cleaners, adhesives
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New cabinets, flooring, or furniture
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Volatile Organic Compounds (VOCs), including formaldehyde
Musty or earthy smells
Often stronger in basements, bathrooms, or closets
Common sources
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Excess moisture
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Mold or microbial growth
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Damp building materials
Sulfur, sewage, or decay smells
Often described as rotten eggs or sewer gas.​​
Common sources
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Natural gas or combustion issues
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Dry plumbing traps or sewer vent problems
Some odors are simply unpleasant. Others can indicate safety or health concerns.
Odors are signals. Understanding the type of odor helps determine the right next step.
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