If they are real wood blinds be very careful using water on them. Water will warp wood blind slats. My vendors recommend using a cleaner like Pledge. If they are faux wood blinds then you can use water, they are essentially plastic.
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Shutters and Blinds
Use a clean, dry feather duster, cloth or vacuum with brush attachment to gently remove dust and debris. To ensure thorough cleaning, wipe the louvers or slats in the open and closed positions. Do not immerse the product in water or use abrasive chemical solvents. This may cause discoloration and the wood to warp. Ultrasonic cleaning is not recommended.
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WOOD BLINDS
For blinds with painted and stained finishes, clean with spray polish or Pledge and a soft cloth. For best results, never use water on any wood products.
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These are care instructions from two of my vendors. If you are going to use water be very carful not to use too much. Maybe a damp cloth with a very mild degreaser, but I would try it on a slat or two first to see if it warps them. I hope this helps, have a great day!
Andy Krotulski
Made in the Shade, Blinds and More.
979-676-2844