This replaceable filter element is only applicable to Smoke Hunter 1.0 air filters,not applicable to other products and other brands! Just screw on the lid of Smoke Hunter 1.0 to use! When you feel that the filter element is wet and has poor performance, you can use natural exposure for a few days or use a hair dryer to dry the inside of the filter element. Many friends put it on the hot floor, which is also a good method! No odor leakage. Bamboo fiber is added to the shell of the filter element, which can be degraded in 2 years! Multiple filter elements are used alternately for longer service life! Easy to use, open the lid like a drink of water and simply blow the gas in to complete the collection of odor. The air flow is very smooth and can be blown in without any pressure. Lab data shows a minimum of 1,000 puffs, with more challenges possible.When you feel that the filter element is clogged or does not work, please purchase this version of replaceable filter element in a timely manner. No odor leakage.Bamboo fiber is added to the shell of the filter element, which can be degraded in 2 years! Pro-tip: Remove the lid after use to dry out the recently produced moisture, keeps it from adding up as quickly ，you can dry the filter element in the sun, in front of a heater, a fan, etc.Keep dry will prolong the service life of the filter element!