S9 Reusable Mask

S9 Re-Useable Face Mask Features:

• Lightweight & comfortable to wear
• Made of soft, food-grade silicone material
• Strong seal with higher airtightness
• Adjustable straps
• 5 replaceable-4 layer filters included
• Can be sterilized in boiling water
• 95% protection level
• Lasts up to 2 years

The filter element of the mask is replaceable. For normal use, we recommend replacement within 7-10 days. For special cases, such as hospitals, bad environment, unsanitary places, etc., please change the filter within 2-3 days.