第二种工作原理是主动式的空气净化原理。市场上的主动类空气净化器和双重净化类空气净化器一般只选择一种主动式的净化技术。市场上主要有银离子净化技术、负离子技术、低温等离子技术、光触媒技术和净离子群技术。主动式的空气净化原理与被动式空气净化原理的根本区别就在于，主动式的空气净化器摆脱了风机与滤网的限制，不是被动的等待室内空气被抽入净化器内进行过滤净化，之后再通过风机排出，而是有效、主动的向空气中释放净化灭菌因子，通过空气弥漫性的特点，到达室内的各个角落对空气进行无死角净化。

The second working principle is the active air purification principle. Active air purifiers and dual purifying air purifiers in the market generally choose only one active purification technology. There are mainly gangguanl.37ix.com.cnzhimaig.37ix.com.cnsujiao.07858.netwulumuqi.89ix.comlanzhou.89ix.com

xian.89ix.comsilver ion purification technology, negative ion technology, low temperature plasma technology, photocatalyst technology and net ion group technology on the market. The fundamental difference between the active air purification principle and the passive air purification principle is that the active air purifier gets rid of the restriction of the fan and the filter screen, not passively waiting for the indoor air to be pumped into the purifier for filtering and purification, and then discharged through the fan, but effectively and actively releases the purifying and sterilizing factors into the air, through the diffuse characteristics of the air. Reach all corners of the room to clean the air without dead corners.

在技术上比较成熟的主动净化技术主要是利用负氧离子作为净化因子处理空气和利用臭氧作为净化因子处理空气两种。这两种就是典型的基于主动净化原理而进行工作的空气净化器。
The mature active purification technology mainly uses negative oxygen ion as purification factor to treat air and ozone as purification factor to treat air. These two are typical air purifiers based on the principle of active purification.