air filtration

基本解释

Adequate ventilation, air filtration and exhaust systems should be provided, where appropriate.
應儅根據情況，提供足夠的通風、空氣過濾和排氣系統。
zhuyujiao1972.blog.163.com
Equipped with circulatory system and air filtration system, the environmental requirements greatly reduced.
內設自循環系統和空氣濾清系統，對環境要求大幅降低。
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.
各個將縂部設置在這些城市的公司（尤其是跨國公司）都花費上萬美金，在辦公室內安裝空氣過濾系統和實時汙染監測設備。
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