Electric building hoists are powered by electricity and are known for their high lifting capacity, speed, and efficiency. They are suitable for heavy-duty applications and can be automated for continuous operation. Pneumatic hoists, on the other hand, use compressed air to generate lifting force. They are quieter, require less maintenance, and are safer in environments where electrical sparks could be hazardous. However, they have lower lifting capacities and are generally slower compared to electric hoists. Pneumatic hoists are also more suitable for applications requiring precise control over the load.