Disposal of Blood Products and Body Fluids ï ï ï ï ï All human blood and other potentially infectious materials should be handled using Universal Precautions. Discard disposable items contaminated with human blood or body fluids (excluding sharps and glassware) into the biowaste boxes. Do not overfill boxes or use without the plastic liners provided with them. These boxes may be used for temporary storage and accumulation of waste. When full, close and seal the plastic liner and box.