How do you clean dawrf hamster?

  Do you give it a bath or what .. It looks like he is getting dandruff???? What do i do?
You could try using unscented baby wipes, baths are dangerous to hamsters, they could drown or easily die of cold from the water. Usually they can groom themselves perfectly fine.
NEVER put ANY hamsters in water, their short, stubby legs arn't ment for swimming, and even if its only VERY shallow, wt and cold would make your hamster stressed, especially if it can't get out, so PLEASE by chinchilla sand instead, and buy a small deepish bowl, a (little bigger and deeper then a hamster food bowl) and put it in her cage, she will LOVE IT! my roborovski hamsters roll around on their backs in it and wash themselfs in it, it makes their fur very soft and it is 100% safe, trust me, oh and they also use it as a toilet too, bonus! <3
give them sand bath/dust bath as most hamsters are desert animals and live in sand most of the time so this is there only option to clean themselves in there natural habitat although when my hamster had his neck ripped open by another i had to clean it with baby wipes (recommended by my vet) but a dust/sand bath is your best option
As said before, hamsters, mice, and rats are perfectly capable of cleaning themselves. They actually are cleaner than cats and dogs both. However , if you notice a oder, try a towel bath. Dampen a cloth with warm water and gently run it through the hamster's fur. When you're done, make sure you dry him/her completely. He/She could easily catch a cold otherwise.
They are generally capable of cleaning themselves. They're great at it. You can just wipe him with a slightly moist towel. He can do the rest.
Dust bath, You have to buy it