・ By absorbing and adsorbing the liquid or granules in the bottle by ventilating the gas from the upper two nozzles.
・ It can be used to enhance the purity of gas by adsorbing unnecessary substances and collect substances absorbed by the internal solution.
・ Because it is a cylindrical glass filter with a wide foam area, it has a structure that is difficult to clog.
・ The bottle and the middle tube use 34/32 compatible common.