When selecting an ergonomic chair and keyboard to reap the benefits, there are many factors to consider, such as size, shape, material, features, and price. If you have any existing or potential health issues, it is recommended to consult a doctor or ergonomics specialist. As a general guideline, look for a chair that has a stable base, height-adjustable seat, backrest that supports your lower and upper back, comfortable and breathable seat cushion, and adjustable and supportive armrests. For the keyboard, look for one with a split or curved design, soft-touch or low-force key action, tilt or negative slope option, palm rest or wrist support, and size and layout that match your hand and finger size and shape. Additionally, try out different options before buying and read reviews and ratings of other users.