The Air You Breathe Is Full of Microplastics
NonToxCo Research
Science & Safety Team · 4/6/2026
Every breath you take pulls microplastic particles into your lungs. A new critical review lays out just how bad the evidence has gotten.
What the Review Found
A 2026 critical review in the Journal of Environmental Sciences compiled the evidence on airborne microplastics and human health. Microplastic particles are present in both indoor and outdoor air. When inhaled, they deposit in the respiratory tract, trigger inflammation, and can penetrate deep into lung tissue.
The review found that particle size, shape, and polymer type all affect how harmful they are. Fiber-shaped particles (from synthetic clothing) and smaller particles are the most dangerous because they travel deeper into the lungs and are harder for the body to clear.
Sources of Airborne Microplastics
Synthetic clothing sheds fibers when you wear it, wash it, and fold it. Car tires release particles on every road. Plastic packaging breaks down and becomes airborne dust. Construction materials, insulation, and even paint contribute. Indoor concentrations can be higher than outdoor levels because particles accumulate in enclosed spaces.
What You Can Do
Use HEPA air purifiers indoors. Vacuum with a HEPA-filter vacuum. Choose natural fiber clothing (cotton, wool, linen) over polyester. Ventilate your home. Wet-mop floors instead of sweeping.
Browse our non-toxic home essentials for cleaner living.
Also see non-toxic kitchen essentials for safer alternatives.Source: Zhang Y, Kumar P, Yuan J, et al. (2026). J Environ Sci.