Introducing our DRK-1000 Mask Bacterial Filtration Efficiency (BFE) Detector! We are a trusted factory, committed to providing high-quality products. Our BFE Detector helps assess the efficiency of masks in filtering bacteria, ensuring reliable protection. With advanced technology and precision, our detector accurately measures BFE, enabling you to make informed decisions about mask quality. Order now and experience peace of mind, knowing you have a trusted partner in ensuring the safety and effectiveness of masks.