A musty odour emanating from a car's air conditioning system could be an indication that mould is growing inside the car's vents. The ventilation systems in cars can sometimes grow mould, as water and other moisture accumulates over time. A mould infestation of a car's air conditioner won't just result in an unpleasant odour; the mould spores blowing through the vents could actually make the driver and passengers sick. Fortunately, the mould problem can be dealt with by spraying a special mould-removing solution into the air vents.
- Skill level:
Things you need
- Speciality mould removal solution
- Spray bottle
- Paper towel
Purchase a speciality solution designed to eradicate mould. Several types can be purchased at various hardware stores, and some version specially designed for cars are available at car shops.
Pour the liquid into a spray bottle. Some versions already may come package in a spray bottle, in which case this step is not necessary.
Spray the liquid into all the air conditioning vents in the car. Be sure to spray into vents in both the front and back seats, and any that may run along the floors or the sides of the car.
Wipe down any excess or spilt liquid from the car's dashboard. Allow the solution to work its way into the air conditioning system.
Turn on the car and its air conditioning system after allowing the solution to dry in the vents overnight. Check to see if the odour remains or can be further localised to specific vents. Repeat the spraying if necessary.
Tips and warnings
- To prevent the mould from coming back, when the driver parks the car, turn off the air conditioner but run the fan for a few moments before turning off the car. This will help prevent moisture from collecting in the air conditioner, which can lead to a return of the mould.
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