@paxmundi this is the mask I am currently using: HALYARD FLUIDSHIELD N95 Respirators, ASTM Level 3 Face Mask, Regular Size, Orange, 46727 (Box of 35), through Amazon.

There are many different model/styles, but what you are looking for is a fluid resistant surgical n-95. If you google the subject you will find plenty of info on them.

Now, fluid resistant is not waterproof. I am not sticking my face/mask in the flow of water. I am very careful washing my hair which is a challenge with the mask straps but not undoable. I have heard some people alter the straps of their n-95 to wear around their ears but have read this compromises the fit so I just work around the straps on my head. Because I have removed my waterhead the flow of water is very narrow and its easy to keep the water off my face when washing my hair. All in all very doable, and super easy for a quick in-and-out when not washing hair.

I heard of someone using a mask that had like a plastic shield that went over the front, over the filter. see envomask.com. It looked interesting and something I may investigate in the future, especially for traveling, it has an ear loop version which would make washing hair easier. But at the present moment I am still getting adjusted to all the cleaning and sterilizing that needs to be done on daily, weekly, monthly basis and so would prefer a disposable mask option for now.