A lens assembly provides an interchangeably removable frame and lens for a face mask for use in adjusting to a variety of different conditions that a user may encounter. The lens assembly beneficially provides a user with an option to interchangeably attach and detach a different lens to a face mask for a plurality of different conditions, including, but not limited to, a variety of visual conditions, a variety of eyesight accommodations, or a preferred design aesthetic. The lens assembly also beneficially provides for an easier and more efficient removal and replacement of the lens from the mask, without a user having to remove the mask from the users face.