Are microplastics from the air causing lung scarring?

What's actually in it

The air in your home is filled with tiny bits of plastic and synthetic fibers. These aren't just dust. They are often shed from your clothes, carpets, and furniture. When you breathe, these particles enter your airways and settle in your lungs.

These particles are not inert. They interact with your immune system and can change how your cells work. Once inside, they can trigger inflammation and interfere with your body's ability to clear out waste, which is a process known as phagocytosis.

What the research says

A 2026 study in Environ Res found that repeated exposure to lint fibers from washing machines causes lung inflammation. This inflammation is linked to a breakdown in how your cells clean themselves, which can also affect how your DNA replicates.

Other peer-reviewed research shows that these particles do more than just irritate the lungs. A 2026 study in Ecotoxicol Environ Saf found that microplastics drive allergic airway inflammation by changing how your immune system responds to threats. These particles essentially hijack your body's signaling pathways, making it harder for your lungs to stay healthy.