新风换气机及管道附件组成的一套独立空气处理系统，新风换气机将室外新鲜空气经过过滤、净化、通过管道输送到密闭的室内，同时，将室内污浊、含氧量低的空气排出室外。当然除此之外，新风系统还能排出装饰后长期缓释的有害气体，例如甲醛等，利于人体健康；避免家居，衣物发霉，安装了新风系统不用开窗也可以享受新鲜空气，调节室内湿度，排出细菌等功能。
A
set of independent air handling system composed of a fresh air
ventilator and pipeline accessories. The fresh air ventilator filters,
purifies, and delivers outdoor fresh air through pipelines to a closed
room. At the same time, it expels indoor dirty and low oxygen content
air from the outside. Of course, in addition to this, the fresh air
system can also discharge harmful gases that are slowly released after
decoration, such as formaldehyde, which is beneficial to human health;
Avoiding household and clothing mold, installing a fresh air system can
enjoy fresh air without opening windows, regulate indoor humidity, and
eliminate bacteria.
什么是空气净化器
What is an air purifier
空气净化器又称“空气清洁器”、空气清新机、净化器，是指能够吸附、分解或转化各种空气污染物（一般包括PM2.5、粉尘、花粉、异味、甲醛之类的装修污染、细菌、过敏原等），有效提高空气清洁度的家电产品。就是不断过滤室内的空气中的有害物质，起到洁净空气的目的，但空气净化器有一个明显的缺点就是只进行室内循环，氧气一直在消耗。接下来小编多方面对比下新风系统和空气净化器的优劣。
Air
purifiers, also known as "air purifiers", air fresheners, and
purifiers, refer to household appliances that can adsorb, decompose, or
transform various air pollutants (generally including decoration
pollutants such as PM2.5, dust, pollen, odors, formaldehyde, bacteria,
allergens, etc.), effectively improving air cleanliness. It is to
continuously filter harmful substances in the indoor air to achieve the
purpose of cleaning the air, but an obvious drawback of air purifiers is
that they only carry out indoor circulation and oxygen is constantly
consumed. Next, I will compare the advantages and disadvantages of the
fresh air system and air purifier in multiple aspects.