A material that alerts people to "an invisible threat" by changing colour in response to UV radiation has been displayed in an installation by Crafting Plastics Studio and DumoLab Research. More
A new generation of compact chips could safely neutralise airborne coronavirus in buildings, vehicles and even outdoor spaces using far-UVC radiation, according to Seth Coe-Sullivan of technology company NS Nanotech. More
Studio Roosegaarde's Urban Sun proposal to use far-UVC lights to make outdoor spaces safer from Covid-19 can only be used at night and people still need to wear masks and observe social distancing, the designer has explained. More
Studio Roosegaarde has proposed a light that uses ultraviolet radiation to sanitise outdoor spaces, claiming this could reduce the risk of people contracting Covid-19. More
Engineering student Carvey Ehren Maigue has been named the James Dyson Awards first-ever global sustainability winner for his AuReus system, in which waste crops are turned into cladding that can generate clean energy from ultraviolet light. More
Dezeen promotion: LARQ, the Californian company behind a self-cleaning water bottle, has launched the "world's most innovative" pitcher that cleans water with ultraviolet light and has a plant-based filter. More
Italian lighting brand Artemide has developed a way of turning lamps into room sanitisers that emit antiviral ultraviolet light when people are not around. More
The minimalist LARQ bottle cleans itself using UV light, for people troubled by the hygiene of tricky-to-wash reusable water bottles. More
Dyson has launched its first humidifier, which uses ultraviolet light to kill waterborne bacteria before the air is dispersed. More