Prince William and Princess Kate have taken another step towards reducing their environmental impact as they have fitted a £200 device inside all three of their royal residences.

The Waleses have added the new advanced technology to their washing machines in Forest Lodge, Apartment 1A, Kensington Place, and Anmer Hall.

The filters added to the machines work to catch microplastics that come from clothes.

They are created by the brand Matter, who are a climate technology company aim to tackle the growing global problem of microplastic pollution.

Prince William

Prince William has purchased filters for his washing machines to help remove microplastics

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The company was a 2025 Earthshot Prize Finalist and is based in Bristol, with Prince William visiting their headquarters on Thursday.

William will receive a hands-on demonstration of the domestic filtration system at their West Country base.

He will also talk about how the brand plans to scale up. The new device comes in two different forms, the first is a filter that can be bought via Bosch for £199 to add to pre-existing washing machines, or a new washing machine with the filter built in.

Following his trip to Matter, the prince will head to the NCC, where he will be shown the Isambard-Al Supercomputer.

During the visit, William will meet with scientists from the University of Bristol who are using the supercomputer to develop new drugs to combat heart disease, Alzheimer’s, and cancer.

The computer is also capable of predicting extreme weather events, another function that will be showcased for the prince.

Matter filter

The filter is designed to remove microplastics from clothes as they are washed

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The Prince of Wales will then be shown a paracanoe seat developed for Paralympic champion Emma Wiggs MBE, who won Gold and Silver at Paris 2024

The lighter, five-times-stiffer seat improved power transfer and speed and was made using digital tools and embedded sensors.

The visit to Bristol comes just a day after it was announced by Kensington Palace that the prince will make a trip to Saudi Arabia.

The trip will be the future king’s first official trip to Saudi Arabia, and the trip will be from February 9th to 11th.

The visit underscores deepening commercial, energy, and investment partnerships between Britain and Saudi Arabia.

Prince William

Matter was one of Prince William’s Earthshot prize finalists

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Both countries are approaching one hundred years of formal diplomatic ties, making this an opportune moment to strengthen the bilateral relationship.

The Walses decision to purchase the filters for themselves underline’s their practical commitment to reducing their impact on the environment.