3-Layer Disposable Protective Face mask
Has three layers. It is a basic defense against some viruses.
Structure and Composition
Non-woven fabrics
Melt-blown fabrics
Nasal splint
Mask belt
Model and Specification
| SIZE | Discrepancy | Layer |
| 17.5×9.5 | ±0.5 | 3 |
| 17.5×9.0 | ±0.5 | 3 |
| 16.5×9.5 | ±0.5 | 3 |
| 16.5×9.0 | ±0.5 | 3 |
| 14.5×9.0 | ±0.5 | 3 |
| 14.5×7.0 | ±0.5 | 3 |
| 12.5×9.0 | ±0.5 | 3 |
PH
Should be 4.0-8.5
Microorganisms
Coliform bacteria shall not be detected, pathogenic pyogenic bacteria, the total number of fungal colonies ≤ 100 cfu/g , the total number of bacterial colonies ≤200cfu/g.
Filtration Efficiency
Filtration efficiency of salt medium ≥ 95%
Inspiratory Resistance
Per PA ≤ 175
Expiratory resistance
Per PA ≤ 145



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