Air
Moderate burden — Unvented Portable Kerosene Heater adds a moderate, reducible exposure.
Flueless kerosene or paraffin space heaters.
Each driver rated 0 (none) to 10 (worst)
Evidence strength: strong · Detox Score = 100 − hazard×4.6 − exposure×3.4 − persistence×2.6, clamped 1–100.
A Detox Score of 47 places unvented portable kerosene heater in the Moderate band. The chemical-hazard rating is what drives the score down. Any unvented combustion appliance puts its entire exhaust — nitrogen dioxide, carbon monoxide and fine particles — into the room it is heating. Vented or electric heating removes the combustion products from the indoor air entirely.
Unvented Portable Kerosene Heater has a Detox Score of 47 out of 100 (Moderate burden), which means it adds a moderate, reducible exposure. Any unvented combustion appliance puts its entire exhaust — nitrogen dioxide, carbon monoxide and fine particles — into the room it is heating. Vented or electric heating removes the combustion products from the indoor air entirely.
A lower-exposure swap for unvented portable kerosene heater is: Vented heating, or electric heaters with a window cracked. Any unvented combustion appliance puts its entire exhaust — nitrogen dioxide, carbon monoxide and fine particles — into the room it is heating. Vented or electric heating removes the combustion products from the indoor air entirely.