The opposite of "loses quality" can be expressed through antonyms such as improves, enhances and upgrades. The quality of a product or service can be improved in various ways, such as through advanced technology, efficient processes, and high-quality materials. Moreover, businesses can opt to enhance the quality of their products or services by investing in research and development, training their workforce, or listening to customer feedback. On the other hand, the opposite of "loses quality" can also be expressed through terms such as sustains, maintains, or preserves. This means that the quality of a product or service is kept at a consistent level through efficient quality control measures and ongoing maintenance.