kn95 face mask

Total Particulate Filtering Efficiency (PFE) is over 95%

POWECOM KN95 masks are produced in very clean, almost dust-free production environments.

The KN95 masks comply with standard GB 2626-2006 (KN95 grade), The performance is tested on four sections:

1) the Filtering efficiency, is over >95%

Tested using NACL as the particulates, the flow is: 85L/minute, the density of particulates: 15mg per CBM, at regulated temperature range, and at regulated humidity range

2) the resistance to inhale (air in) : must be less than 350 Pa

3) the resistance to exhale (air out): must be less than 250 Pa

4) the quality of ear loop / headband straps: pulling force of 10N lasting for 10 seconds, must be OK, cannot break

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Cautions and Limitations

Please be advised failure to follow all instructions and limitations on the use of the KN95 protective masks can reduce its protection performance and may result in sickness or death.

1. This product cannot be applied to prevent harmful gases.

2. Discard this face mask when it gets quite dirty or breathing resistance increase remarkably.

3. Store the mask in a clean and cool place. Avoid high temperature over 40°C and humidity over 80%

4. Baby or patient with respiratory abnormalities cannot use it.

5. Do not use the face mask when oxygen concentration is less than 19.5%, because this product does not supply oxygen. Use only in adequately ventilated areas with sufficient oxygen.

6. Do not use the face mask when the concentration of dust, or particles are immediately dangerous to health or life. Leave the contaminated area immediately if breathing gets difficult or dizziness or distress occurs.

7. Do not use the face mask in the explosive atmosphere and place.

8. Keep the face mask away from vapor, oils, chemicals, liquid, acid, alkaline objects, paint spraying.

9. Do not wash the face mask with water. Water will destroy the filtering ability and protection.

10. Do not steam the face mask, and do not put it in a Microwave oven.

11. Check the air sealing of the mask. Do not use if the face mask is broken or with hole or leakage.

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All KN95 masks are made in China, but only a few are FDA authorized like this mask.

kn95 safety mask high filter efficiency

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INCLUDED IN FDA EMERGENCY USE AUTHORIZATION LIST

kn95 safety mask

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99.28% MAX FILTER EFFICIENCY

kn95 safety mask

N95 and KN95 masks are both required to have more than 95% filter efficiency, but the reports for our mask prove over 99% efficiency.

退换规则

商品问题
如产品破损、错发、漏发或超过保质期等,请在收到包裹7个工作日内(逾期不予受理,请见谅)请联系在线客服处理。货源充足下,可按要求补发,否则将会以退还积分或退款处理。


食用商品类别
由于大部分生产商为确保客人品尝到新鲜美味的食品,设定的赏味期限较短,同时为了确保食品卫生和完整性所以无法实施7天内无条件退款政策。一般情况下除了质量问题美国零食网无法接受退款申请。个别情况请您随时联系客服办理退款申请。同时由于在运输过程中出现一些不在零食网控制范围内的商品质量问题, 请理解美国零食网无法接受退款申请,如:
1. 由于温度原因导致巧克力类别商品会融化
2. 罐头包装的商品在运输过程中出现碰撞,导致外包装凹陷,即使并不会因此影响商品本质和口感(介意外包装的客户请谨慎选购)

如有其它产品质量问题请第一时间联系在线客服处理。

退货步骤

STEP 1. 申请退货
请在收到包裹7个工作日内联系官方在线客服办理退款。

STEP 2. 待客服确认
零食网客服将会通过邮件或电话跟您确认相关的退货信息,一旦零食网接受退货申请您将收到一封退货确认邮件。

STEP 3. 退款
待客服核对成功后,我们将直接对顾客发起退款。退款将在1-2个工作日内返还到顾客的银行账户上。

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