Description: Very common indoors; some species can produce toxins (mycotoxins).

Health effects: Allergic reactions, respiratory issues, infections in immunocompromised individuals.

Description: Common on water-damaged materials, wallpaper, and fabrics.

Health effects: Allergies, asthma triggers, respiratory irritation.

Description: Found on wood, carpets, fabrics, and painted surfaces.

Health effects: Allergic reactions, asthma aggravation, mild respiratory irritation.

Description: Grows in damp areas, often on window frames, showers, or walls.

Health effects: Allergies, asthma, sinus irritation.

Description: Prefers cellulose-rich, wet materials like drywall or wood.

Health effects: Produces potent mycotoxins; can cause severe respiratory issues, fatigue, and irritation.

Description: Found in water-damaged drywall and insulation.

Health effects: Allergic reactions, potential for mycotoxin exposure.

Description: Grows on water-damaged carpets and textiles.

Health effects: Can cause infections, especially in immunocompromised individuals.

Description: Appears as black, pink, or purple discoloration on painted surfaces and caulking.

Health effects: Allergies and respiratory irritation.

Description: Found in very damp areas, like behind walls and ceilings.

Health effects: Rarely pathogenic but can cause allergic responses.

Description: Fast-growing mold on wet carpets, walls, and insulation.

Health effects: Usually minor, but can affect those with weakened immune systems.