Before washing a shower curtain, check polyester versus PEVA
Some IKEA polyester curtains allow a 40°C machine wash, while its PEVA curtain models prohibit washing and call for wiping with a wet sponge. Check the individual care label first.
IKEA Korea lists its BANJANTRÄD polyester curtain as machine-washable at up to 40°C and not tumble-dryable, but its BJÄRSEN PEVA curtain as 'do not wash'. Similar-looking curtains can require very different care.