Do washing machines release microfibers that can harm health?

What's actually in it

Your laundry isn't just getting clean. Every time you run a cycle, your clothes shed tiny pieces of fabric known as microfibers. These are often made of synthetic materials, which are essentially microplastics. When these fibers break away from your clothes, they don't just disappear. They enter the water and the air around your machine.

Recent peer-reviewed research in Sci Rep confirms that these fragmented fibers are released during standard washing conditions. Once these particles become airborne or enter the environment, they can be inhaled or ingested, putting them directly into contact with your body's cells.

What the research says

The health impact of these fibers is significant. A 2026 study in Environ Res found that repeated airway exposure to washing-machine lint microfibers is linked to lung inflammation. This inflammation may interfere with how your cells clean themselves, a process called phagocytosis, and could even disrupt how your DNA replicates.

Furthermore, a 2026 review in Toxics highlights that the release of microplastics from consumer products is a growing concern for human health. Because these fibers are so small, they can travel deep into the body, creating a persistent risk that we are only beginning to fully understand.