Lighting and Acoustics Tarkett has developed carpet products which help improve the lighting and acoustic environment of buildings: the Desso Light Reflection Master® carpet has the ability to enhance brightness on interior walls and ceilings by up to of as much as 10% in artificial lighting; while the Desso SoundMaster® carpet can improve impact sound insulation by up to +10 dB (3) compared to standard carpets. Health and Safety In areas with a high risk of hospital- acquired infections – such as operating theatres, medical laboratories and cleanrooms – floors must meet the highest hygiene standards to ensure infection control and air cleanliness.