Transport chairs, also known as companion wheelchairs, have four small wheels instead of two small and two large. A transport chair is designed to only be push by a caregiver, other common names are 'companion chair' or 'rollabout chair'.

When using a transport chair, there are several important considerations to keep in mind:

Weight Limit: Ensure that the chair can support the weight of the individual being transported. Check the manufacturer's specifications for the maximum weight capacity. 

Comfort: Look for a chair with adequate padding and support to ensure the user's comfort during transport. Some models may have adjustable armrests or footrests.

Mobility: Consider the environment where the chair will be used. Make sure it can navigate through doorways, hallways, and uneven surfaces easily.

Safety Features: Check for secure brakes on the wheels to prevent accidental movement when stationary, and consider models with seat belts or safety straps for added security.

Ease of Transport: Look for lightweight options that can be easily folded for storage and transport. This is especially important if the chair needs to be moved in vehicles.

Caregiver Comfort: Since the chair is meant to be pushed by a caregiver, the height and handle design must be comfortable for the person pushing it.

Durability: Consider materials and construction quality for long-lasting use, especially if the chair will be used frequently.

Maintenance: Check if the materials are easy to clean and maintain, particularly for those who may have special health needs.