Cookstove Indoor Air Pollution Simulator

Stove & fuel

Room ventilation

Air changes / hour 2.0

Sim speed 3 min/s

— idle —

Live PM2.5 (µg/m³)

This stove

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Clean-stove comp.

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Cumulative exposure dose

This stove (µg·h/m³)

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Comparison (µg·h/m³)

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Dose ratio

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Sessions · sim time

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How it works

The room air is treated as a single well-mixed volume. Cooking injects fine particulate matter (PM2.5) at a rate set by the stove/fuel choice; ventilation removes it by exchanging room air with outdoor air. The concentration follows a mass-balance equation:

dC/dt = E/V − (ACH/60)·(C − C_out)

E — PM2.5 emission rate of the burning fuel (µg/min). Incomplete combustion of wood, charcoal or dung on an open or basic stove releases far more smoke per unit of cooking energy delivered than a well-designed improved-combustion stove or a switch to LPG/electric.
V — the kitchen's air volume (fixed here at ≈28 m³, a small poorly-partitioned cooking space).
ACH — air changes per hour; an open window, a chimney or an extractor raises it and dilutes smoke faster.
Cumulative dose — the running time-integral of concentration (concentration × time), a simple proxy for the inhaled health-risk burden a cook accumulates over repeated daily sessions.

The chart always plots your chosen stove alongside a same-schedule comparison run on the cleanest option (LPG/electric) — or, if you've already selected the clean stove, against the traditional open fire — so the gap between the two lines is the pollution a stove upgrade would avoid.

Flame Smoke haze Ventilation flow

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