This project consists of photographs taken in Central and Western district of Hong Kong over the past 2 years. During the pandemic, I established a walking routine around this neighbourhood and was constantly attracted by certain type of things: the projection of sunset light onto a wall, some scattered bags of construction wastes, a standing group of trees, or sometimes the rushing of people - ordinary things exist like hidden currents, unobservable and undeniable - I sensed there is a spectrum of these things that adds to the atmosphere of the functioning of this society. They seem to be unrelated, never drift away from expectation, boring and trivial, but fundamental. This reminds me of the 101 statistics class back in school, the White Noise. Mundane life runs inevitably with backgrounds and the fundamental ones are usually the dullest ones. They take various forms: sound, scent, colour, or ultimately, the cosmic microwave. The White Noise is a reunion of all the seemingly unrelated scenes that humbly exist in the background that underlines the daily routines and proves the existence of human society.