English
For those who do acid washing, electroplating, printing and dyeing in the workshop, or prepare solutions in the laboratory, people often ask: which type of mask and mask should be chosen to prevent acetic acid?
Let me first mention an easily overlooked point: Acetic acid vapor belongs to acidic gases, but buying only one "acidic gas filter box" may not be enough. In the Fangdun 5000 series, 5103 is E1 grade, used for sulfur dioxide and other acidic gases or vapors; If there is an organic solvent odor present on site, you can use 5108 (A1E1 composite grade), while for mixed gas environments with more complex components, use 5107 (A1B1E1K1 comprehensive grade). Before starting, it is more practical to determine what gases are present on site than simply comparing prices.
In terms of mask body, the 1105C and 1105K are double filter box silicone half masks, food grade liquid silicone masks designed according to the Chinese face shape, with exhalation resistance below 50Pa and inhalation resistance below 20Pa; the double box layout makes the force on both sides more balanced, reducing the burden of long-term operation. The body of the poison filter box is an ABS trapezoidal groove structure, equipped with a three-stage interface. When packing, it is positioned clearly and locked in place. The interior is filled with coconut shell activated carbon blocks, and the contact area between the gas and the filter material is relatively large.
Acetic acid is irritating to the eyes. If there is obvious eye irritation during work, relying solely on a half face mask is not enough. You can replace it with a Fangdun 1680 full face mask.
There are two situations that need to be separated: low concentration odor, short-term residence, and some people wearing ordinary activated carbon masks to save time. These masks have limited adsorption capacity and cannot replace the protection of gas masks; When there is acid mist or dust on site, a 5101N filter cotton cover and filter cotton need to be installed at the front end of the filter box to block particles and absorb gas.
The rest is usage habits. The filter box is a consumable, and it should be replaced if you smell an odor or have difficulty breathing; Perform a tightness check before each wear to confirm that the model is consistent with the day's work. The specific configuration and replacement cycle shall be subject to on-site inspection and professional evaluation.
