This achievement was reported recently by Sky Trax whose Safety Rating is regarded as a global benchmark for defining safe travel assurance for customers. The article on the website stated that:
“Heathrow has made many improvements to their COVID-19 safety protocol implementation in the past 6 months, with enhanced hygiene and cleanliness measures now meeting a strong overall standard, and further enhancements due in the coming months. The airport has widely rolled out antimicrobial coatings on frequently touched surfaces, and has also introduced UV sanitization measures on escalators rails, and through its UV cleaning robots.” Read more here.
You can see a UV-C disinfection robot in action at Heathrow Airport in this short video produced by ITV News: