BENCHMARK

For years there have been debates over how to set a standard for mold spore levels in homes. Because mold spore species and levels differ from state to state, no one has been able to agree. Keep in mind since each person is effected differently, there’s no definitive way to quantify the amount of exposure that will or will not cause specific symptoms. A comparison to an outdoor air sample has been a great benchmark to help establish a baseline control factor considering each indoor environment is related to its outdoor environment. Outdoor levels are generally higher than indoors, however it’s also a matter of spore-species type and circumstances causing or sheltering the microbial growth. Mold is present almost everywhere, and you are exposed to it every time you exit the home or open a window. The following table outlining mold spore ranges are solely Air-Mazings, opinion from sampling and fellow industry professional’s opinions.

LEVELS SPORES PER M<sup>3</sup> AND CM<sup>2</sup> REMEDIATION RECOMMENDATIONS
LOW 0 - 99 Considered trace amount and normal levels in most scenarios
LOW+ 0 - 99

250 - 499
LOW+ depending on genus species type, and comparison to Outside Control.

Stachybotrys, Chaetomium, and/or Memnoniella presence greater than 27spcm
requires additional treatment and air purification minimum 24 hours.
Additional inspection recommended.
MEDIUM 500 - 799

800 - 1,099
Depending on species type, a detailed microbial wipe down, HEPA-vacuuming of all contents
and surfaces, and fungicidal fogging may help optimize indoor air quality.
Remediation recommendations may be provided.

An HVAC unit + ducts systems inspection by licensed HVAC and NADCA certified technician.
MEDIUM+ 1,100 - 1,399 Remediation recommended to bring indoor levels to condition one fungal ecology.
HIGH 1,400 - 2,199

2,200 - 2,999
Containment recommended to isolate contaminated areas.
Remediation recommendations provided to achieve condition one indoor fungal ecology.

Containment recommended to isolate contaminated areas.
Remediation recommendations provided to achieve condition one indoor fungal ecology.
VERY HIGH 3,000+ Containment recommended to isolate contaminated areas.
Limiting exposure to contaminated environment recommended + Immediate remediation.