English
In industrial, chemical, laboratory and other scenarios that require respiratory protection, Fangdun gas masks provide a complete solution that balances protective performance and wearing experience. Its product line covers two types: half face masks and full face masks, which can adapt to the needs of different working environments.
Material and wearing experience
The main body of the mask is made of food grade liquid silicone material, which is also used in products such as baby pacifiers. It is non-toxic and odorless, and does not easily cause allergic reactions when in contact with the skin. The face mask is designed based on ergonomic principles, conforming to the contours of Asian faces, and is less likely to produce significant pressure marks when worn for a long time. The cover components are made of high-strength ABS material, which has the characteristics of chemical corrosion resistance and heat resistance. The overall structure is lightweight and durable.
Respiratory resistance and comfort
Smooth breathing is an important indicator for measuring the practicality of face masks. The expiratory resistance of the half face mask is less than 50Pa, and the inspiratory resistance is less than 20Pa; among them, the model using the support type resistance reducing valve seat technology can further reduce the expiratory resistance to below 35Pa. The dual filter box parallel design effectively increases the intake cross-sectional area, reduces respiratory impedance, and is suitable for long-term continuous operation. The door curtain style exhalation valve design helps to expel humid and hot air, reducing the accumulation of hot air inside the mask.
Vision and facial protection
The full face model is equipped with a high-performance polycarbonate screen, which has high light transmittance and combines scratch resistance and anti fog properties. The face screen provides a 180 ° visual range without significant visual distortion, allowing operators to maintain a relatively wide field of view in complex environments. The five point fixed headband design ensures stable wearing of the mask and reduces the risk of displacement during vigorous movements.
Filtering and replacement
The filtering element is the core of the gas mask. The filter box uses coconut shell activated carbon blocks with developed pore structure and fast adsorption rate. The filter material undergoes special chemical treatment to form targeted protection against various pollutants such as organic gases and acidic gases. The filter cover adopts a double-sided buckle design, which allows for manual replacement of filter cotton without the need for tools. The filter box interface adopts a standardized three-stage bayonet design, which is compatible with various mainstream models of filter elements on the market.
Fangdun gas masks are suitable for respiratory protection in toxic and harmful gas and dust environments in industries such as machinery manufacturing, automotive industry, chemical production, and coal mining. Choosing filter elements that match the work environment and wearing them according to specifications and conducting air tightness checks are the basic prerequisites for maximizing their protective effectiveness.
