I've seen a large number of health blogs that describe polyester, rayon, acrylic, and nylon as harmful or toxic (usually due to chemicals used during the manufacturing process). Some examples include:
- Claims that synthetic fibers are manufactured with toxic chemicals: https://fashionbi.com/newspaper/the-health-risks-of-toxic-fibers-and-fabrics
- Claims that bodyheat causes polyester to out-gas harmful molecules: https://www.thehouseofpillows.eu/polyester-shouldnt-be-in-your-bed-blog/
- Claim that polyester traps odors and facilitates harmful bacterial growth: https://www.whowhatwear.com/worst-fabrics-for-skin
I know that the internet is prone to blow things out of proportion, especially when it comes to supposedly toxic household items. I don't know enough to assess these claims myself, which is why I'm posting here.
From my perspective, it seems like any residual chemicals used in the manufacturing of synthetic fabrics should come off in the wash. In addition, many of the sites may be connected to a company that's trying to advertise alternatives to polyester, and these sites may be especially prone to exaggeration or misinformation.
Are there health concerns related to the use of polyester or other synthetic fabrics in clothing and mattresses?