Laboratory and chemistry icon set on white background

A clean set of four black line icons is arranged in a simple two-by-two grid on a white background. The symbols include a laboratory flask, a molecular structure, a protective respirator mask, and an industrial processing tank with connected piping. Bold outlines and generous spacing give the artwork a clear, technical feel that works well for science, safety, and manufacturing themes. The minimal black-and-white palette keeps the composition versatile for web use, presentations, and educational materials. Each icon is isolated with no shadow or texture, making the design feel precise and modern. The balanced layout leaves plenty of white space around the elements, which is useful for graphic design and editorial cropping.