Walk-in bathtubs come equipped with safety features for people with limited mobility. Therapeutic features vary, but generally, all walk-in tubs have the same safety features, including a low step-in threshold, watertight entrance door, built-in seating and anti-slip floors. Use our guide to compare the most popular walk-in tub companies. People with limited mobility benefit from the easy access of a walk-in bathtub. Elderly individuals may want to look into switching to a walk-in tub for the added safety and therapeutic features available in different models. Soaker tub: A walk-in soaker tub is a basic model and does not have any air or water jets. It includes a leak-proof door, a seat and a low-entry step-up. Most tubs also include grab bars and anti-slip floors and seats. Aerotherapy tub: Aerotherapy tubs are soaker tubs outfitted with air jets for water circulation. These tubs are designed to provide a therapeutic massage experience. Hydrotherapy tub: Hydrotherapy tubs are soaker tubs that include water jets for water circulation, which often provides a more intense massage than aerotherapy tubs. Hydrotherapy tubs also usually include air jets. Combination walk-in bathtub: Combination aerotherapy/hydrotherapy tubs have both air and water jets. These tubs include the features of standard soaker tubs, and they can be customized with LED lights for chromotherapy and essential oil infusions for aromatherapy. Wheelchair-accessible tub: Wheelchair-accessible tubs have outward-facing doors that allow people to transfer from the wheelchair into the bathtub more easily. The tub seat is generally lower in height than standard tub seats. Bariatric tub: Bariatric tubs are specifically made with obese individuals in mind. They are walk-in tubs that are larger than standard models to ensure they’re comfortable. Chromotherapy: Chromotherapy is the term given to color therapy used in conjunction with water. In chromotherapy walk-in tubs, different colored lights shine in the water. This feature is supposed to help improve your energy and mood. Aromatherapy: Aromatherapy walk-in tubs allow users to try out essential oils to create an aromatic experience. Lavender, jasmine and green tea are common scents people enjoy using, but you can use any essential oil you like. Reclined: In most walk-in tubs, bathers sit upright. If you prefer to recline, you can buy a walk-in tub that lets you lean back farther. Laydown: Laydown walk-in tubs are as close to traditional bathtubs as you can get with a walk-in tub. You lie down while you bathe but can still take advantage of safety features like non-slip surfaces and safety bars. Fast-draining: Traditional walk-in tubs typically take six to 15 minutes to drain. Fast-draining tubs can take less than four minutes, and some drain as quickly as 90 seconds. Inward swinging door: Many walk-in tubs have inward-swinging doors that require less bathroom space and are easier to close. Outward swinging door: Some people prefer walk-in tubs with outward swinging doors. If you’re in a wheelchair, it’s easier to transfer to the seat if the door isn’t in the way. Walk-in shower: You might prefer a step-in tub and shower combo. Step-in bathtubs with showers let you take a shower while experiencing the traditional benefits of a walk-in tub. Rising wall bathtub: Kohler offers a walk-in tub that has a rising wall instead of a swinging door. The rising wall seals the tub shut and keeps water from leaking out.