HERTSMI-2 Score Calculation
| Mold Species | Spore E./mg | Points |
|---|---|---|
| Aspergillus penicilloides | 0 | |
| Aspergillus versicolor | 0 | |
| Chaetomium globosum | 0 | |
| Stachybotrys chartarum | 0 | |
| Wallemia sebi | 0 | |
| HERTSMI-2 Score Total Points | 0 | |
10 points are assigned for:
Units are in Spore E./mg
- Aspergillus penicilloides >500
- Aspergillus versicolor >500
- Chaetomium globosum >125
- Stachybotrys chartarum >125
- Wallemia sebi >2500
6 points are assigned for:
Units are in Spore E./mg
- Aspergillus penicilloides 100-499
- Aspergillus versicolor 100-499
- Chaetomium globosum 25-124
- Stachybotrys chartarum 25-124
- Wallemia sebi 500-2499
4 points are assigned for:
Units are in Spore E./mg
- Aspergillus penicilloides 10-99
- Aspergillus versicolor 10-99
- Chaetomium globosum 5-24
- Stachybotrys chartarum 5-24
- Wallemia sebi 100-499
🧪 HERTSMI-2 Score Interpretation
| Score | Meaning | Recommendation |
|---|---|---|
| < 11 | Statistically safe for re-entry, even for individuals with CIRS. | Environment is considered safe. |
| 11 – 15 | Borderline range. May present a moderate risk. | Perform cleaning/remediation and re-test before re-entry. |
| > 15 | Considered dangerous for individuals with CIRS. | Do not enter until full remediation is completed and results improve. |
Reference: Surviving Mold (2014), HERTSMI-2. Accessed 24 May 2017.