WHY AIR PURIFIER IS IMPORTANT

INTRODUCTION

OVERVIEW

Outdoor Air Pollution PM 2.5 and PM 10

Indoor Air Pollution VOC Dustmite

HAZE

- Haze is caused when sunlight encounters tiny pollution particles in the air especially PM 2.5.

- More pollutants, more absorption and scattering of light.

- Natural or manmade air pollutant.

- Natural windblown dust, soot from wildfires,

- Manmade Vehicles, industrial fuel burning, manufacturing operations.

- Complex mixture of extremely small particles and liquid droplets.

- Size of particles linked to their potential for causing health problems.

- PM10 inhalable coarse particles, 2.5~10 micrometers. Eg, near roadways and dusty industries.

- PM 2.5 fine particles, smaller than 2.5 micrometers. Eg, forest fires, gases from power plants, industries.

- Premature death in people with heart or lung disease, aggravated asthma, increased respiratory symptoms such as irritation of airways, coughing or difficulty breathing.

PARTICULATE MATTER (PM)

Indoor air is 2-5 times polluted than outdoor air!!!!

INDOOR AIR POLLUTION

Is outdoor air quality better than indoor air quality?

VOC

- Volatile organic compounds are organic chemicals that have high vapor pressure in room temperature.

- Large number of molecules evaporate to surroundings.- Harmful VOCs typically not acutely toxic, but have

compounding long-term health effects.- Major manmade VOCs: Protective coatings, paints, CFCs,

methylene chloride.- Newly furnished buildings or furniture.

DUSTMITE

>10micrometer

<10micrometer

Refurnished buildings

CONCLUSION

SAVE OURSELVES, GET A BETTER AIR QUALITY

THERE IS NO DUPLICATE LUNGS

Stacy Simon. (2013). Why Lung Cancer Strikes Nonsmokers October 28, 2013 Source: http://www.cancer.org/cancer/news/features/why-lung-cancer-strikes-nonsmokers

Environment Protection Agencyhttp://www.epa.gov/airtrends/aqtrnd95/backgrnd.html

http://www.airnow.gov/index.cfm?action=aqibasics.particle

http://www.red.fm/haze/haze-situation-in-penang-getting-worse/

Clarissa Sebag-Montefiore. (2011) CHINA: Pollution Real if not Official December 19, 2011 Source: http://www.globalissues.org/news/2011/12/19/12264

REFERENCE