The nasal cavity is the first line of defense for human breathing, the nose is like a machine with multiple functions of heating, humidification and filtration, and the nasal mucosa is the filter of the machine, which resists a large amount of dust and microorganisms for the respiratory system. The filter needs to be cleaned regularly, as well as the nasal passages. When the autoimmune system is abnormal, it is easiest to relieve daily nasal symptoms by rinsing the nasal passages.

Emser是GermanySiemens & Co公司旗下Nasal irrigation device品牌，Siemens & Co公司创立于1858年，一百多年来研究呼吸道疗法，产品在Germany药房销量领先，呼吸治疗药物和医疗设备也销往欧洲国家，旗下Emser手动冲洗式Nasal irrigation device，不仅是Germany过敏与哮喘医学会测试冠军，还曾荣获Germany商品检测基金会Stiftung Warentest的良好评价。

Emper is a patented nasal pot, using a specially designed valve and communicator, with the help of gravity to naturally produce water, clean the nasal cavity, the bottle design is ergonomic, the grip experience is better when cleaning, the whole nasal pot design is simple, detachable and cleaned, and also supports machine high temperature disinfection. It combines the advantages of a curved and straight bottle, relying on gravity to dispense water gently, and the soft bottle body can be squeezed to control the pressure freely, which is better than NeilMed's "small teapot" NasaFlo Neti Pot in terms of design, but not as rich as NeilMed's single products, and has more choices.

According to the size, the Emser is divided into children's and adult models, which can be bought for about 10 euros in Germany, and the price in China is between 150 yuan and 175 yuan.