
- Standard GB2626-2006
- Filtering rate <=95%
- Leak rate <=13%,<=10
- Inspiratory resistance<=175 Pa
- Expiratory resistance<=145 Pa
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- Standard GB2626-2006
- Filtering rate <=95%
- Leak rate <=13%,<=10
- Inspiratory resistance<=175 Pa
- Expiratory resistance<=145 Pa
- Get It Now!

- Standard GB2626-2006
- Filtering rate >=95%
- Leak rate <=13%,<=10
- Inspiratory resistance<=350 Pa
- Expiratory resistance<=250 Pa
- Get It Now!

- Standard GB19082-2009
- Type: adjustable headband
- Lens color: transparent
- Function: anti saliva, dust, fog
- Shape:160-185(CM)
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