Mold Removal glossary
Air sampling
Collecting air through a device for lab analysis of spores, usually compared with an outdoor sample.
Biocide
A chemical intended to kill microorganisms; EPA says it's not a substitute for removing mold.
Clearance testing
Testing after remediation to help verify cleanup, ideally by an independent inspector.
Condensation
Water forming when moist air meets a cold surface.
Containment
Plastic barriers isolating a work area during remediation.
Encapsulation (crawlspace)
Sealing a crawlspace with a heavy liner, often with humidity control.
HEPA
High-efficiency particulate air filtration used in vacuums and air scrubbers.
Hygrometer
A device measuring relative humidity.
Moisture meter
A tool measuring moisture in materials.
Mold remediation
Removing mold and correcting the moisture that caused it.
Mycotoxins
Substances some molds can produce; see EPA and CDC for health information.
N-95
A respirator type mentioned in EPA guidance for small mold cleanups.
Negative air pressure
Exhausting air from a work area through HEPA filters so spores don't drift out.
Porous materials
Materials like drywall, insulation and carpet that absorb water and are often removed when moldy.
Relative humidity
How much moisture air holds relative to its maximum at that temperature.
Spores
Microscopic reproductive particles of mold, present nearly everywhere.
Stachybotrys chartarum
A mold species often called 'black mold'.
Surface sampling
Swab or tape samples from visible growth.
Thermal imaging
A camera showing temperature differences that can suggest moisture.
Vapor barrier
Plastic sheeting covering crawlspace soil.