kitchen blind

I think all you can do is to close them flat and brush or carefully wipe them down.

Some of these mail order companies sell a special two-pronged brush/sponge for cleaning blinds in situ.

Here's one....http://www.amazon.co.uk/Brush-Venetian-Cleaner-Duster-Washable/dp/B00BQYJAZU

I have a slatted aluminum blind in the kitchen too. DH hangs it with string from the washing line stands well back to diffuse the jet and uses the pressure washer.

That's why I don't have Venetian blinds anymore!

I have the same blinds in the kitchen and they are the devil to clean. The patent gadget does not work. DH usually closes the blinds and vacuums them with a soft brush, turns them completely the other way and repeats.
I didn't help matters on Sunday when a bottle of sparkling water I was opening squirted up the blind and window, or there again that bit of the blind is clean.

I had a lovely one in the bathroom and gave up on it. You only had to look at it and it bent. Got a silver coloured roller blind to replace it.

Thank you for suggestions, everyone.

Roller blinds don't have that problem. No horizontal surfaces for dust to land on . My daughter has them too. They would not be my choice.

I have the same blinds in the bathroom. I use the two pronged device , slightly damp and it works very well. best to do it regularly otherwise the dust seems to 'stick'.