Mold Remediation Calculator
Size containment air changes and HEPA filtration for mould remediation.
About Mold Remediation Calculator
Scrubber count follows from the containment volume and the target air change rate. Negative pressure matters as much as filtration, because it is what stops spores migrating into clean areas during the work. Disturbing mould without containment spreads it far more widely than leaving it alone, which is why the containment sizing comes before any cleaning.
Formula
Mold Remediation
Required airflow = containment volume × target air changes per hour
- air changes per hour
- Complete volume exchanges, typically 4 to 6 during remediation
- negative pressure
- Keeps spores inside the containment rather than spreading them
Worked example
With the default values below, Mold Remediation Calculator returns Air Scrubbers Required of 1. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Affected areaminimum 0 m2
- 12 m2
- Containment volumeminimum 0.1 m3
- 45 m3
- Target air changes per hourminimum 1
- 6
- Air scrubber capacityminimum 1 m3/h
- 850 m3/h
- Remediation cost per square metreminimum 0
- 120
Results
- Air Scrubbers Required
- 1
- Required Airflow
- 270.0 m3/h
- Remediation Cost
- $1,440.00
- Containment Sheeting
- 37.95 m2
- Remediation Scale
- Large — professional remediation with clearance testing
Step by step
- 1Values used
- 2Mold Remediation
- 3Air Scrubbers Required= 1
- 4Required Airflow= 270.0 m3/h
- 5Remediation Cost= 1,440.00
- 6Containment Sheeting= 37.95 m2
- 7Remediation Scale= Large — professional remediation with clearance testing
Assumptions and limits
- The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- This is a planning estimate only and not a health assessment. Mould exposure can cause serious respiratory illness, and extensive growth or any growth linked to sewage or contaminated water should be assessed by a qualified remediation professional.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
This is a planning estimate only and not a health assessment. Mould exposure can cause serious respiratory illness, and extensive growth or any growth linked to sewage or contaminated water should be assessed by a qualified remediation professional.
Frequently Asked Questions
How is Mold Remediation calculated?
Required airflow = containment volume × target air changes per hour Scrubber count follows from the containment volume and the target air change rate. Negative pressure matters as much as filtration, because it is what stops spores migrating into clean areas during the work.
Why does Mold Remediation matter?
Disturbing mould without containment spreads it far more widely than leaving it alone, which is why the containment sizing comes before any cleaning.
What values do I need to enter?
This calculator takes 5 inputs: Affected area, Containment volume, Target air changes per hour, Air scrubber capacity, Remediation cost per square metre. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.