Can someone wash negel vasser (morning washing after sleep) in a bathroom with a toilet and shower? The bathroom is clean?
For today’s bathrooms, which are generally clean, the Chazon Ish (17:4) writes that there is a doubt as to whether they retain the same status of Chazal’s bathrooms. This is all the more true for a
bathroom that is used for purposes other than excusing oneself.(see Teshuvos Vehanhagos 2:4).
Therefore, there is room for leniency in washing one’s hand in the bathroom, though the berachah after washing should be recited outside.