A 3D model of a desktop computer setup, featuring a gold stand, black tower with red logo, and high-resolution display, with a modern, sleek aesthetic. It has compact design and is suitable for office or home computing needs.

A 3D model of a projector screen, featuring a gray frame and white surface with a sleek design. It has a flat, foldable structure and is suitable for office meetings and presentations.

A 3D model of a Multifunction Office Machine, featuring a sleek white design with integrated scanning platform and multiple input trays, and a modern minimalist aesthetic. It has high detail and low polygon count, suitable for office environments, document processing, and multi-task printing/copying.

A 3D model of a Haier air purifier, featuring white and gold finishes, sleek ventilation grilles, and a modern minimalist aesthetic. It has low polygon count and is suitable for home or office environments. (注：原类目"Office Appliances"不准确，核心物体为家用/办公空气净化器，更准确归类为Home Appliances)