I need a round box package design for retail product packaging. The box will contain a car air purifier and should be made of cardboard. Requirements: - The design should be visually appealing and suitable for retail display. - Must consider functionality and protection for the car air purifier. - Eco-friendly design is a plus. Ideal Skills and Experience: - Experience in packaging design, especially for retail products. - Strong understanding of materials, specifically cardboard. - Creative and innovative design skills. - Portfolio showcasing previous relevant work.