Beauty giant L’Oreal has unveiled a smart hair dryer which uses infrared light and wind to dry hair using less energy. Called the AirLight Pro, the firm’s first mainstream electronic device will be seen as a competitor to Dyson’s range of high-end hair styling products when it launches in the US and Europe from April in salons and late in mid-2024 for consumers. It has been unveiled at CES, the annual technology trade show in Las Vegas, which opened on Tuesday. L’Oreal said the device is unlike conventional hair dryers because it does not use thermal rods to generate heat, instead using the pa…