Hot air cotton (non-adhesive cotton) is a new type of filter material, which is a replacement product of polyester wadding and silk-like cotton. Hot air cotton, also known as Air mouth cotton, is made by heating (hot rolling, hot air) process of ES and low-melting point fiber, with low gram weight, soft quality, light and breathable, hot air cotton non-woven fabric is a new type of mask material, which is widely used in N95 folding mask.

 ES in ES hot air Cotton is a kind of composite fiber, which is the abbreviation of Ethylene-Propylene Side By Side in English refers to the name of raw materials, as a new type of thermal bonding composite fiber, esfiber has gained high evaluation in the world.

     The basic structure of N95 folding mask is that the outer layer is a water-blocking fabric made of non-stick non-woven fabric, polymer fabric, non-woven fabric, etc. The second layer of the middle layer is a warm filler, the material is hot air Cotton, the third layer of the middle layer is meltblown fabric, the filtration of meltblown fabric is about 95%, and the moisture absorption layer is used inside.

  Hot air Cotton has the characteristics of high fluffiness, good elasticity, soft hand feeling, strong warmth retention, good air permeability and water permeability, etc. It is widely used in N95 folding mask as filling material, sandwiched in the second layer of N95 folding mask from outside to inside, it mainly plays the role of thermal insulation, moisture-proof keep dry, and improves the comfort of the wearers.