air filtration

基本解释

Adequate ventilation, air filtration and exhaust systems should be provided, where appropriate.
应当根据情况，提供足够的通风、空气过滤和排气系统。
zhuyujiao1972.blog.163.com
Equipped with circulatory system and air filtration system, the environmental requirements greatly reduced.
内设自循环系统和空气滤清系统，对环境要求大幅降低。
www.tnc.com.cn
Companies, especially multinationals, based in these cities are spending tens of thousands of dollars to install air filtration systems and real-time pollution monitoring devices in their offices.
各个将总部设置在这些城市的公司（尤其是跨国公司）都花费上万美金，在办公室内安装空气过滤系统和实时污染监测设备。
edu.sina.com.cn

The solid nanoparticles can be placed in air filtration units or sprayed as a powder.
FORBES: Nanotech On The Front Lines
To cope with air pollution in China, artist Matt Hope produced a "Breathing Bike, " that consists of a fighter pilot's breathing mask attached to a pedal-powered air filtration system.
ENGADGET: blogger-avatar
The 32-story hotel has nearly 1, 200 all new and cutting edge guest rooms, all part of the new Respire by Hyatt hypo-allergenic program, featuring a six-stage process to remove irritants, including state-of-the-art air filtration.
FORBES: Hyatt Regency New Orleans, LA