Try this kelly tip that works like a charm.
Easily clean venetian blinds.
If your venetian blinds have more buildup of dust and some oily residue then cleaning with soapy water is the way to fix it.
You can also use your vacuum cleaner and a soft brush attachment to quickly and easily clean aluminum venetian window blinds.
Next drain the tub and rinse the blinds with a shower wand or by pouring clean water over them.
Put the blinds back up and dry them with a towel or hang them outside to air dry.
If the slats are really dirty and dusty to quickly and easily clean them you ll need to close the slats and take the blinds down.
Following the above method of cleaning from the centre of the blinds to the left and then from the centre of the blinds to the right will make the job as easy as possible.
Just remember that the thin metal slats bend easily so you ll have to be careful.
Next starting at the center of each slat and working toward the edges run your fingers lightly over the slats with cotton gloves or dusting mitts.
To clean venetian blinds start by wiping away any noticeable debris with paper towels.
To give your blinds a deep clean follow these steps.
Pick them up and hold them over the tub to let excess water drain away.