GP is probably referring to KF94, the Korean standard. Their form factor is somewhere between a surgical mask or an industrial / medical N95. They are quite pop

GP is probably referring to KF94, the Korean standard. Their form factor is somewhere between a surgical mask or an industrial / medical N95. They are quite popular, here in HK, with people who want to protect their makeup. Example: https://www.amazon.com/KF94-Protective-Individually-Packaged-Certified/dp/B08J95F5TR https://www.amazon.com/KF94-Protective-Individually-Packaged...