QB-EM-5002A Headband Earmuff
Kepatuhan: ANSI S3.19: 1974,NRR27
EN352-1:2020, SNR34
QB-EM-5002B Lipat Headband Earmuff
Kepatuhan: CE EN352-1:2020, SNR33
ANSI S3.19: 1974, NRR26
QB-EM-5002C Neckband Earmuff
Kepatuhan: EN352-1:2002, SNR31
QB-EM-5002D Helm Dipasang Earmuff
Kepatuhan: EN352-3:2002, SNR28
ANSI S3.19: 1974, NRR22