Finally, cut three or four vent holes in the ceiling. This will allow stale air to escape. The vent holes need only be {{units|5 cm|2 inches}} in diameter, but they ''must'' be made, or you will be re-breathing the C0<sub>2</sub> you exhaled previously. If you plan to light a candle inside, the vents are even more important, as they will allow carbon monoxide to escape.
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Finally, cut three or four vent holes in the ceiling. This will allow stale air to escape. The vent holes need only be {{units|5 cm|2 inches}} in diameter, but they ''must'' be made, or you will be re-breathing the C0<sub>2</sub> you exhaled previously. If you plan to light a candle inside, the vents are even more important, as they will allow carbon monoxide to escape.
Latest revision as of 20:31, 9 April 2021
Finally, cut three or four vent holes in the ceiling. This will allow stale air to escape. The vent holes need only be 5 cm in diameter, but they must be made, or you will be re-breathing the C02 you exhaled previously. If you plan to light a candle inside, the vents are even more important, as they will allow carbon monoxide to escape.
in diameter, but they must be made, or you will be re-breathing the C02 you exhaled previously. If you plan to light a candle inside, the vents are even more important, as they will allow carbon monoxide to escape.
