The only disadvantage they have is that they cannot be cleaned easily.  Cleaning mini blinds doesn’t require strength – it requires delicate handling.  The following instructions should help clarify how to clean them. 

As a first step, you should vacuum-clean them while the mini blinds are still hanging on your window. This process will help to remove excess dust. Next, you should remove the mini-blinds from the window and take them either outside or to the bathroom for a wet wash.

For the liquid washing component, you will need a hose, a clothesline, a bucket and a sponge. Make a mixture of one-part water, to one-part ammonia in the bucket. Gently apply the mixture on the mini-blinds, front and back. Allow the mixture to stand on the blinds for about five minutes, after which you just hose them. Wipe the mini-blinds with a soft cloth and hang them on the clothesline to dry.

To help prevent dust buildup, rub down the mini-blinds with an anti-static dryer sheet.

The above instructions are most relevant for cleaning cloth mini blinds.  However, on the other hand, if your mini blinds are made of wood, clean them like you clean any of your wood furniture.

Source : Articles Factory