➤ Specification:Type: Safety Respirator Cartridges FiltersModel: 7711CNMaterial: electrostatic filterShelf life: 3 years from the date of productionProtection objects: can filter all kinds of non-oily particulate matter, but not suitable for radioactivity and high toxicityparticulates➤ Can the filter cotton be cleaned?Protective filter cotton cannot be cleaned or disinfected. Cleaning and disinfection will change the performance of the filter material and greatly reduce the protection level, so that it does not reach the original level of performance. It should usually be replaced every day. It should be replaced after exposure to the infectious environment.➤ How long can filter cotton be used?The service life of the filter cotton is determined by the dustproof and poisonous concentration of the environment where it is located. Because of the different occasions, the dustproof (toxic) concentration of the environment is uncertain.➤ Note：* We are an international seller, the actual arrival time is 20-30 days, due to special circumstances, the arrival time may be delayed, please make sure you do not mind before placing an order.➤ Packing List: 10/20/30 pcs * Filters(Note: only gas Mask Filters, excluding other items used in the picture for display)
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