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When i use my aircon or heater i get these kind of damp wet smell coming out of the vents.

At first i thought it was the freon but it also comes when i use the heater.

(I was told to change my freon because the gases are now old & could even be harmful, and to be honest each time i use it on a hot day i feel extremly sleepy when i use the a/c)

Anyone got any ideas?

Thanks people.

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https://www.sau.com.au/forums/topic/316595-funny-ac-heater-smell/
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Is the drain hose from the A/C clogged > mouldy?

Even if that's the problem & it has been rectified, it's common to get a bit sleepy with air cond ON and lack of outside air coming in; due to positive ions being emitted. Some shopping centres do that to people too.

But yes, mould is NOT healthy at all.

Good time to clean the cabin filter too.

In regards to the system being smelly - run the a/c on constantly re-circulate (I'm aware it's un-healthy) for a few days whenever you drive the car - this will help dry any moisture in the car.

Another thing to do is spray a good amount of Glen 20 (or any other available air-con disinfectant) in the front foot wells, leave the A/C to run on max speed, get out of the car (the fumes would make you high) and close the doors for about 5 mins.

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