MFF-5 Mask Blue

Rated 4.76 out of 5 based on 119 customer ratings


A comfortable mask with 3D cut, adjustable earloop, headband, and nose clip ;

Premium Quality: Uncompromised Comfort & Protection. The MFF mask is our bestselling mask.

Outer Layer: 100% Polyester
Mid Layer: Nano-Filter
Inner Layer: 100% cotton

The mask has passed the ASTM F3502-21 Standard Specification for Barrier Face Coverings. The filtration efficiency of the mask is over 86% even after 50 washes, based on 70+/-20nm particles.

Test Report please see blow:
ASTM F3502-21 part 1
ASTM F3502-21 part 2

Washing instruction: In how to “How to take care of the 3S Mask” section.

SKU: 912363 Categories: ,



Additional information



119 reviews for MFF-5 Mask Blue

Rated 4.76 out of 5
Based on 119 reviews
Showing 2 of 119 reviews (3 star). See all 119 reviews
  1. I didn’t get the blue, they substituted black, but they did ask me first, and gave me a credit.

  2. Comfortable fit and great seal around the face.

  3. Great comfy mask

  4. I was given the wrong mask and have been trying to get it exchanged. This is the first time this has happened after purchasing all my masks from 3S for the past year and a half!

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