Notice: 10Pcs=5 pairs=5 packets 20Pcs=10 pairs=10 packets 40Pcs=20 pairs=20 packets The difference between 2091 and 2097 The difference between 2091 and 2097 filter cotton mainly lies in its use and protection range. The 2091 filter cotton is mainly used to reduce the odor of organic vapor and protect ozone gas below the occupational exposure limit concentration; the 2097 filter cotton, in addition to protecting dust, also has an activated carbon layer inside. 2091 filter cotton is specially designed to filter organic vapor odors, which can effectively reduce or eliminate odors and odors produced during industrial production. It is suitable for use in a variety of places where odors and odors need to be prevented, such as in industrial fields such as sewage treatment, garbage disposal, meat processing and pharmaceuticals. In addition to protecting against dust, 2097 filter cotton also has an activated carbon layer, which has stronger adsorption capacity and has a good removal effect on organic gases and odorous substances. It is usually used in more stringent filtration situations, such as hospitals, laboratories and high-precision industrial production environments. Mating Masks: For 3M 6200 / 7502 /7501 /6800 Brand: 2091 2097 P100 Filter Cotton Material: High Efficiency Electrostatic Filter Cotton Product Manual: 2091 2097 P100 filter cotton can filter solid and liquid particles! 1.This product is a mask filter module, the filter effect of 99.97%, suitable for solid particles, such as ore, coal, iron ore, cotton, flour and other processing dust, suitable for spray generated liquid or oily does not produce harmful volatilization Particulate matter, suitable for radioactive particulate protection, such as uranium and ring, but also for asbestos, welding smoke, nuclear radiation Chen, glass fiber protection. 2.The filters are extremely light weight, flexible and they fit tight against the mask, all of which makes wearing this type of mask a bit more comfortable. About Us: 1.We are a factory and support . If you need long-term cooperation, please contact me directly, I will definitely give you a preferential price. 2.Welcome to order! You just need to note: We don't include or add any company information or logo on or inside the package. We will deliver the goods according to your requirement. When will we send your order? After receiving your order, we will send your order within 48 hours. (Except holidays) How long will it take for me to receive the package? We use fast logistics, usually delivered within 20 days, if you do not receive the package after 30 days,pls contact us,we will help you. About feedback If you are satisfied with our products, please give us all 5 stars. If you have any questions, please do not give us negative feedback. Please inform us immediately and we will provide you with the best service and solution. Please note : 1. Please fill in your full name and complete address, including your apartment number, street, city, region and country. 2. We cannot control the delivery time because it is handled by a third-party service, But if the package cannot arrive after the delivery protection time, please contact us, we will help you track it and give you a satisfactory answer. 3.Dear,In order to save costs for both parties, we use simple packaging. If you are commercial and need special packaging, please contact our customer service. 4. When the package comes, please check it face to face and sign for it.