FREE TOOL IICRC S500 STANDARD MATH

IICRC S500 Dehumidifier Sizing
Calculator

Calculate the exact AHAM pints required to dry a structural loss based on IICRC S500 Class definitions.

Autonomous Field Engineering & Compliance Engine
IICRC S500 DEHU SIZING CERTIFICATE
Standard: IICRC S500 AHAM Dehumidification Standard
Date / Time: Generated Live
Job / Claim: Field Dehu Sizing Log
Contractor: Proof Certified Restoration Operator
Generates an instant, carrier-compliant 1-page vector PDF equipment sizing certificate. Zero login required.

Calculator inputs

Room Dimensions

Water Class

Total Volume (Cu Ft)
0
Required AHAM Pints / Day
0

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VERIFIED FIELD CALCULATION CERTIFICATE Proof AI Engineering Standards · Zero-Hallucination Deterministic Math · IICRC S500 AHAM Standard
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How To Use The
Dehumidifier Calculator

What is the formula for calculating dehumidifiers?

According to IICRC standards, the foundational formula is: Volume (Cubic Feet) ÷ Class Factor = Required AHAM Pints. Class 1 factor is 100, Class 2 factor is 50, Class 3 factor is 40.

What does AHAM mean?

AHAM rating is the standard measurement for dehumidifier capacity. It represents the number of pints of moisture a unit can remove from the air in 24 hours at exactly 80 degrees Fahrenheit and 60% relative humidity.