RELATED: PG everyday If the drain tube appears to be in proper working condition, you can rule this problem out and look at killing off the mold currently within your cars’ AC system in addition to preventing new mold from forming in the future. Scent is arguably the most important factor when choosing a car air freshener because it will determine how your car smells for the foreseeable future. For those focused on aromatherapy and in search of essential oils, there’s even more to consider befor