首先代表化学方向的毕业生们声明，所谓“纯物理”三个字是典型的，助长社会不良风气的学科歧视。所谓非纯物理的空净，用的也还是物理技术。
First of all, graduates representing the direction of chemistry declared that the so-called "pure physics" is a typical word, which promotes disciplinary discrimination in the unhealthy social atmosphere. The so-called non-pure physical cleanliness also uses physical technology.
好吧，俗称纯物理过滤的空净，指的是只用HEPA、活性炭等滤网过滤，清除空气中的PM2.5，甲醛等污染物。
Well, commonly known as pure physical filtration of the air, refers to the use of HEPA, activated carbon and other filters to filter, remove PM2.5, formaldehyde and other pollutants in the air.
而相对非纯物理空净，指的是没有使用滤网，或者在滤网之外使用其他技术，比如最近流行的高压静电集尘技术，此外当然还有日系厂家可能会编造出的各种奇葩名字的技术，如X离子，X因子，XX能等等。

Relatively impure physical cleanliness refers to the absence of a filter, or the use of other technologies oyinchuan.89ix.comzhengzhou.89ix.comjinan.89ix.comtaiyuan.89ix.comchangsha.89ix.comnanjing.89ix.com

utside the filter, such as the recently popular high-voltage electrostatic dust collection technology, in addition, of course, there are Japanese manufacturers may invent a variety of exotic name technology, such as X ion, X factor, XX energy and so on.