Air purifier location and position are key in reducing transmission of coronavirus aerosol

Scilight ◽  
2021 ◽  
Vol 2021 (50) ◽  
pp. 501104
Author(s):  
Anne Cockshott
Keyword(s):  
Air Purifier

APPLICATION OF TITANIUM OXIDE COATINGS FOR NEUTRALIZATION OF HAZARDOUS CHEMICAL SUBSTANCES

2019 ◽  
Vol 2 (12) ◽  
pp. 131-136
Author(s):  
О. Halak ◽  
N. Poltorak ◽  
О. Kravchuk ◽  
V. Synko ◽  
Y. Korol
Keyword(s):  
Ultraviolet Rays ◽  
Gaseous Emissions ◽  
Oxide Coatings ◽  
Mobile Objects ◽  
Hazardous Chemical ◽  
Catalytic Material ◽  
Air Purifier ◽  
Domestic Use ◽  
Purification Methods ◽  
Plasma Electrolytic

Contamination of hazardous chemicals is currently considered one of the major environmental problems. The methods of purification of gaseous emissions depending on the physicochemical properties of pollutants, in particular dangerous chemical, their aggregate state, concentration in the gas environment are studied in this article. The effect of aerosol content such as dust and soot is analyzed as well as the efficiency of purification methods at different temperature intervals, methods of purification of multicomponent mixtures. The comparative characteristics of thermochemical, reagent, sorption and catalytic methods are given and the prospects of their application in filtering systems of stationary and mobile objects are evaluated. It has been proved that almost any organic compounds can be oxidized (mineralized) on the TiO2surface. In practice, any photocatalytic air purifier includes a porous TiO2 deposited carrier, which is irradiated with ultraviolet rays and through which air is purged. Photocatalysis is suitable for domestic use as it can occur at room temperature. For example, a thermocatalytic method of destroying harmful substances requires preheating the air to a temperature above 200 ° C. Photocatalysis destroys substances that penetrate even through activated carbon filters. Features of formation of oxide coatings by plasma-electrolytic oxidation of titanium alloys are considered. It is proposed to refine the design of collective defense systems on armored vehicles and stationary facilities with additional installation in the filter-absorber of the grid with the deposited layer of catalytic material, which will neutralize various types of dangerous chemicals due to photocatalytic air purification.

Air purifier devices based on adsorbents produced from valorization of different environmental hazardous materials for ammonia gas control

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57284-57292 ◽  
Author(s):  
Elham F. Mohamed ◽  
Sohair A. Sayed Ahmed ◽  
Nasser M. Abdel-Latif ◽  
Asmaa EL-Mekawy
Keyword(s):  
Air Pollution ◽  
Pollution Control ◽  
Hazardous Materials ◽  
Waste Recycling ◽  
Environmental Load ◽  
Air Pollution Control ◽  
Ammonia Gas ◽  
Air Purifier ◽  
Gas Control

The present study aimed to find a beneficial solution for waste recycling and disposal by converting it from an environmental load to products useful for air pollution control.

Ozone generated by air purifier in low concentrations: friend or foe?

2017 ◽  
Vol 24 (28) ◽  
pp. 22673-22678 ◽  
Author(s):  
Larissa Vivan Cestonaro ◽  
Ana Maria Marcolan ◽  
Luciana Grazziotin Rossato-Grando ◽  
Ana Paula Anzolin ◽  
Gabriela Goethel ◽  
...  
Keyword(s):  
Low Concentrations ◽  
Air Purifier

Effect of air purifier on indoor air quality and atopic dermatitis

2013 ◽  
Vol 1 (3) ◽  
pp. 248 ◽  
Author(s):  
Hyun Chul Park ◽  
Young Hoon Kim ◽  
Jeong Eun Kim ◽  
Joo Yeon Ko ◽  
Sun Ju Nam Goung ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Purifier
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