Contains: 40 pcs of Len Filters Braun ThermoScan Lens Filters are designed to protect the thermometer’s lens, keeping it clean and safe from obstructions that could affect the accuracy of readings and help prevent cross-contamination Compatible and clinically validated to use with Braun ThermoScan Ear thermometers Our disposable Lens Filters are designed to be replaced after each temperature reading; simply remove the used cap and replace with a new one Only use Braun certified Lens Filters to ensure accurate readings BPA-free and latex-free