If the bathroom faces the porch during home decoration, the most direct solution is to close the bathroom door frequently to isolate and block it, so as not to destroy the original geomantic omen.
If there is enough room in the home, you can also add a screen outside the bathroom, which can not only isolate the wind and water, but also beautify the home accordingly.
You can also set a bathroom shower curtain or a movable door outside the bathroom, which can also separate the bathroom and lock the dirty air and moisture in the bathroom.