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3. Background on VOCs Volatile Organic Compounds (VOCs) are “organic chemicals that have a high vapor pressure and easily form vapors at normal temperature and pressure” VOCs can be carcinogenic, toxic, and flammable They can originate from clothing, building materials, cars, trees (http://www.ilpi.com/msdS/ref/voc.html)http://www.ilpi.com/msdS/ref/voc.html

4. Household VOCs Formaldehyde – Can be found in adhesives for carpets, facial tissues and other hygienic products, and insulation – Carcinogenic Benzene – Can be found in tobacco smoke, fuel, paint supplies, and car exhaust – Carcinogenic Dichloromethane (methylene chloride) – Found in spray paints, adhesive removers, and some aerosols – Converted into carbon monoxide in the body

5. Our Solution A fan to detect the levels of VOC’s in common living space Fans circulate air around the rooms where we spend our time – Our fan will alert you to what is actually in the air you are circulating – Color changing led's alert the consumer to changing levels of VOC’s – High levels of VOC’s are signaled by an auditory cough

6. Prototype Design Synkera 707 VOC sensor is added into bottom vent of the fan – VOC’s are heavier than air LEDs along the back edge of the fan glow in color in accordance to VOC concentration – Range of color is from blue (no VOCs detected) through green, yellow, orange, and red (high concentration of VOCs)

7. Prototype Design cont’d The fan will make an audible “cough” when the red LED indicates a high concentration of VOCs The VOC sensor, LEDs, and speaker for the “cough” will be powered by rechargeable batteries Batteries are charged by docking them on a solar cell charger Codename: “FANtastic”

8. Air enters through fans Air exits through vent Synkera 707 VOC Sensor in air column LEDs on back panel Speaker for “cough” Rechargeable batteries from solar cell charger

9. Materials Used and Cost Material UsedEstimated Cost LASKO 40 Inch Fan$60.00 Synkera 707 VOC Sensor$50.00 Assorted LEDs$20.00 Solar Cell Charger and Rechargeable Batteries$100.00 Color Controller for LEDs$170.00 Recordable Hallmark Card (for “cough”)$5.00 Misc. Expenses$100.00 ESTIMATED TOTAL COST:$505.00