How waterproof vents achieve the effect of waterproof and breathable

The waterproof vents is made of expanded polytetrafluoro-Zene as a breathable membrane, which has a microporous structure at the microscopic level. It uses the order of magnitude difference between the size of gas molecules and liquid and dust particles to allow gas molecules to pass through, while liquid and dust cannot pass through. , so as to achieve the purpose of waterproof and breathable.

The generation of water is because the negative pressure absorbs water vapor during the working process of the product, and the water vapor condenses in the inner shell will appear water. After the waterproof vents are installed, they are filtered by the waterproof vents under negative pressure, and the air inhaled contains tiny water vapor, and the water vapor can also be discharged in the case of positive pressure, which can achieve the effect of balancing the pressure difference between the inside and outside. Breathable = air and waterproof, water will not form.