Nasopharyngeal and oropharyngeal swab specimens were collected with synthetic fiber swabs; each swab was inserted into a separate sterile tube containing 2 to 3 ml of viral transport medium.
STEP 3 Lay bra flat to dry. Never stuff your bra in the dryer. Delicate fabrics like lace or silk won't hold up and synthetic fibers will lose their shape and elasticity.
These synthetic fibers in the vest degrade overtime and they shed microfibers and microplastics which pollute our environment, are ingested by wildlife, and they even pose a risk to human health.