SUNDALY 3-ply Disposable Face Masks

Standard (GB/T 32(contact info removed)): This is a Chinese national standard for daily protective masks designed to filter particulate matter (like PM2.5) and pollution. Unlike medical standards (such as YY 0(contact info removed)), this standard does not require testing for bacterial filtration efficiency (BFE) or resistance to fluid/blood penetration. 3-PLY Construction: These masks typically consist of three layers: an outer water-repellent layer, a middle melt-blown filtration layer, and a soft inner layer for comfort. Protection Level: While they provide a physical barrier against large respiratory droplets, they generally offer lower filtration for very fine submicron particles compared to medical-grade surgical masks or N95 respirators.

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