With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: A wide range of volatile solvents intended for household or industrial use are inhaled as recreational drugs. This includes petroleum products (gasoline and kerosene), toluene (used in paint thinner, permanent markers, contact cement and model glue), and acetone (used in nail polish remover). These solvents vaporize at room temperature. Ethanol (the alcohol which is normally drunk) is sometimes inhaled, as is quite easily done at room temperature. The ethanol must be converted from liquid into gaseous state (vapor) or aerosol (mist), in some cases using a nebulizer, a machine that agitates the liquid into an aerosol. The sale of nebulizers for inhaling ethanol was banned in some US states due to safety concerns.
text_B: If someone was trying to inhale ethanol for recreational use at home, could the fact that an air conditioning unit was running make the difference between success and failure?
NO.