Your satisfaction is our service principle and communication makes our life better.If there is any problem with the product, we will return 100%.100% Return guaranteeSpeicification:This is a kind of fine quality face mask replacement filtering pad, made of spunlaced viscose nonwovens, multi effect isolation, more safe protection. Breathable and skin-friendly, bringing you a safe breathing experience. Suitable for professional protective mask, disposable medical mask, ordinary civil mask. We recommended to replace it every 3 hours once, and the single piece should not exceed 4 hours. You can have a try.Specifications: Name: Face Masks Replacement Filtering PadMeterial: spunlaced viscose nonwoven fabric Packing List:50 * Face Masks Replacement Filtering Pad Note:We recommended to replace it every 3 hours once, and the single piece should not exceed 4 hours.Help extand using time of face mask, approx 3-4 days.If you are travelling on vehicles with high crowd density, we suggest you to replace the mask directly. Please use it after washing your hands, and the filter cannot be cleaned or reusable.
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