Parked in direct sunlight, the poorly ventilated bubble-top Peel Trident could probably cook a chicken in about an hour.

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Spills would also be a health risk, since carbon dioxide is heavier than air, and so can build up in low-lying or poorly ventilated spots.

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But while most people know that mold thrives in poorly ventilated and moist environments and indoor smoking worsens the air quality, fewer consumers know that toxic chemicals also lurk in everyday products purchased at the grocery store.

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