Synthetic Fabrics at Home

- Yes, they can affect indoor air quality!

Among synthetic fabrics, fleece is known to shed especially large amounts of fine fibers, simply because of its fluffy, brushed structure.

Many synthetic fabrics, such as polyester, fleece, acrylic, and nylon, shed very small fibers during normal use. These fibers can become airborne when we move, sit on furniture, make beds, clean, or handle textiles.

Because these fibers are lightweight, they can linger in indoor air longer than heavier dust particles — particularly in homes with lots of soft furnishings.

What kind of particles are released?

Synthetic textiles can release microfibers, which are a form of microplastic. These fibers are usually invisible to the eye but small enough to be inhaled.

Research has shown that indoor air often contains more fibrous microplastics than outdoor air, and household textiles are considered one likely source.

Does this mean synthetic fabrics are dangerous?

Not necessarily.

Research on the long-term health effects of inhaling microplastic fibers is still ongoing. What we do know is that reducing unnecessary airborne particles — of any kind — generally supports indoor comfort and respiratory wellbeing.

This is about minimizing exposure, not eliminating all synthetic materials.

What can I do in everyday life?

Small, practical habits can help:

• choose natural fibers (linen, cotton, wool) where possible

• limit heavily shedding fabrics like fleece indoors

• wash new textiles before use

• vacuum with a HEPA-filter vacuum

• ventilate when cleaning or handling textiles

These steps reduce airborne fibers without requiring major changes.

What’s the KotiLife approach?

At KotiLife, we focus on awareness over perfection.

You don’t need to remove all synthetic fabrics from your home. Being thoughtful about what you bring into everyday spaces — especially bedding, clothing, and upholstery — is often enough to make a noticeable difference in how your home feels to live in.