INVACARE BATH SAFETY PRODUCTS Invacare shower chairs provide a comfortable seating surface for bathing or showering. They were designed for individuals who require more support than that provided by a bath board. If you have low endurance, or difficulty standing in the shower or tub, our shower chairs will provide you with a safe way of bathing. They are designed for individuals who require seating support when bathing or showering, and fit in virtually any standard tub or shower. Invacare shower chairs provide comfort and safety in the bathtub.