Tools
Calculators that do one step of the chain each. Every tool shows its formula, the assumptions behind it and where the result stops being reliable — the number is an estimate, never a measurement.
- T-0002 From emission rate to room concentration
Estimates the steady-state concentration a product produces in a room from its area-specific emission rate, the area installed, the room volume and the air exchange rate.
c(µg/m³) ≈ (SER(µg/(m²·h)) × A(m²)) ÷ (V(m³) × n(h⁻¹))
Formaldehyde (CH₂O) · Volatile organic compounds (VOCs) · Benzene · 6 September 2026 - T-0001 Unit converter: µg/m³ ↔ ppb
Converts a gas concentration between µg/m³ and ppb for a chosen substance, temperature and pressure.
c(µg/m³) ≈ φ(ppb) × M(g/mol) ÷ Vm(L/mol), where Vm = R·T ÷ p
Formaldehyde (CH₂O) · Benzene · Toluene (C₇H₈) · 6 September 2026