English
Industrial dust masks are important personal protective equipment in mining, metal smelting, building materials processing, mechanical polishing and other scenarios. Unlike ordinary masks, industrial dust masks must comply with the national mandatory standard GB 2626-2019 "Respiratory Protection Self priming Filter Anti Particle Respirators". This standard divides masks into three levels based on filtration efficiency: KN90, KN95, and KN100. The filtration efficiency for non oily particles is not less than 90%, 95%, and 99.97%, respectively. Among them, KN100 is a higher level in the current domestic particle protection classification.
Filtration efficiency and respiratory resistance are two core parameters for measuring the performance of a respirator. The Fangdun1100 series half face mask paired with the 2000 series filter cotton set can achieve a filtration efficiency of over 99.97% for non oily particles above 0.075 microns; Inhalation resistance ≤ 20Pa, exhalation valve resistance ≤ 50Pa, low resistance performance effectively reduces the respiratory burden of long-term work. The main body of the mask is made of silicone material, which is soft and fits the contour of the face; The dual filter cotton structure expands the effective filtering area, allowing airflow to pass through more smoothly.
The correct selection is the first step in ensuring adequate protection. KN type filter cotton can be used in scenarios such as mining and construction where non oily dust is predominant; The KP model should be selected for scenarios involving oily particles such as mechanical processing and welding. When wearing, it is necessary to check the sealing of the mask, block the air intake with your palm for inhalation, and ensure that the mask is visibly collapsed. Otherwise, adjust the headband. Filter cotton is a consumable item that should be replaced promptly when there is a significant increase in respiratory resistance, discoloration, or damage to the filter cotton; If there are cracks or valve deformation in the mask body, it needs to be replaced as a whole. When storing, keep away from damp and oily environments to avoid aging of filter materials.
The protective effect of industrial dust masks depends not only on the product itself, but also on the correct selection, wearing, and maintenance. From filtration efficiency to wearing experience, products from brands such as Fangdun are continuously optimizing various parameters to provide more reliable respiratory protection support for frontline workers.
