It is important to decrease HEPA filter resistance for promoting air cleaning equipment performance and reducing HVAC system cost.
降低高效空气过滤器的阻力对于提高空气净化产品的性能、降低暖通空调系统的成本有着重要的意义。
参考来源 - 高效空气过滤器阻力与结构关系的实验研究Objective To assess the effects of air cleaning on hemorheology of elderly patients with type-2 diabetic.
目的探讨空气净化对老年Ⅱ型糖尿病患者血液流变学的影响。
参考来源 - 空气净化对老年Ⅱ型糖尿病患者血液流变学的改善作用 Effects of air cleaning on hemorheological in elderly patients with type·2,447,543篇论文数据，部分数据来源于NoteExpress
It's an air cleaning machine connected to a bicycle and is part of the Smog Free Project.
这是一台连接到自行车上的空气净化机，是雾霾净化项目的一部分。
Proven hot gas generating, air heating, supply air cleaning and exhaust air dedusting systems are available for gas, air and heat supply.
我公司生产的热气发生装置、空气加热装置、供气净化装置和废气除尘系统等均被实践证明为可靠的供气、供热设备。
Applications: Some hi-temp air cleaning equipments, Hi-temp sterilization oven tunnel, for eg. pharmacuticals. , hospital, chemistry. hi-temp air supply for some special processes.
主要应用：某些耐高温净化设备和工艺设备， 高温灭菌隧道， 如制药、医疗、化工等行业。 某些特殊工艺高温送风系统。
Chemical sprays like air fresheners,hair spray, household cleaning products and even strong perfumes can also trigger an asthma attack.
VOA: special.2009.07.28
Chemical sprays like air fresheners, hair spray,cleaning products and even strong beauty aids can trigger an asthma attack.
VOA: special.2010.09.07
Engineers on the ground designed a way the astronauts could connect air-cleaning devices from the command module to the air system in the lunar module.
VOA: special.2009.07.22
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