Nitrous oxide is classified into 4 main categories based on its application: electronic, industrial, food-grade, and medical-grade. Among these, electronic-grade nitrous oxide boasts the highest purity and is commonly utilized in the electronics industry for applications such as display panels, photovoltaic components, semiconductor manufacturing, and integrated circuit production. It demands extremely low impurity levels to prevent contamination or damage to microelectronic devices. Industrial-grade nitrous oxide has comparatively lower purity requirements but still must meet certain quality standards to ensure effectiveness and safety during use. Food-grade nitrous oxide is primarily employed in the food industry for producing cream and foam. Its purity requirements are relatively high to prevent contamination or harm to consumers’ health. Typically, the purity standards of food-grade nitrous oxide comply with relevant food safety regulations such as FDA and CE standards. Medical-grade nitrous oxide is mainly used in the medical field, particularly as an inhalation anesthetic for surgeries, pain management, etc., offering fast anesthesia and recovery. It demands high purity and safety standards to ensure patient health and safety.

Tonghui Gas offers nitrous oxide with purity ranging from 99.9% to 99.9999% (6N), catering to the gas supply needs of the aforementioned industries.