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IAQ Index Calculator
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Input Parameters
Unit System
Imperial (°F, BTU, ft)
SI (°C, kW, m)
CO₂ Level (ppm)
PM2.5 Level (μg/m³)
TVOC Level (mg/m³)
Relative Humidity (%)
Calculate
Results
IAQ Index
100
IAQ Index
Excellent
Air Quality Rating
Indoor Air Quality Index Calculation Theory
Click to expand theory section
Calculation Steps
1
Calculate IAQ Index
Formula:
I
A
Q
=
C
O
2
S
c
o
r
e
+
P
M
2.5
S
c
o
r
e
+
T
V
O
C
S
c
o
r
e
+
R
H
S
c
o
r
e
4
IAQ = \frac{CO_2 Score + PM_{2.5} Score + TVOC Score + RH Score}{4}
I
A
Q
=
4
C
O
2
S
core
+
P
M
2.5
S
core
+
T
V
OCS
core
+
R
H
S
core
Calculation:
I
A
Q
=
100
+
100
+
100
+
100
4
IAQ = \frac{100 + 100 + 100 + 100}{4}
I
A
Q
=
4
100
+
100
+
100
+
100
Result:
100.0
100.0 \text{ }
100.0
