Braun Thermoscan Lens Filters LF40Use only Braun certified lens filters for accurate readings. For the most accurate temperature reading with your Braun ThermoScan thermometer, the use of a Braun lens filter, every time, is vital. These protective filters help keep the delicate lens clean and undamaged as well as maintaining hygiene between users. Boxed Contents: 40x Braun Thermoscan Lens Filters Size: 40ea KEY FEATURES Professional accuracy Easy to use Gentle & comfortable Hygienic