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Among many environments, the motor vehicle cabin micro-environment has been of public concern. Infact Air pollution more harmful to children in cars than outside. Although commuters typically spend only 1-2hrs per day of their time in vehicles, the emissions from various interior components of motor vehicles as well as emissions from exhaust fumes carried by ventilation supply air are significant sources of harmful air pollutants that could lead to unhealthy human exposure due to their high concentrations inside vehicles’ cabins. This N9 silver ion technology helps significant reduction of microbial & viruses inside the vehicle cabin air. On contact silver will neutralize harmful bacteria on plastic surfaces giving them long lasting freshness and long-term protection. Silver is a natural antimicrobial. That means that microbes-germs can’t survive in the presence of silver ions. Silver ions released from the surface of silver molecules.

Among the Original Equipment Manufacturers (OEM’s), comfort, fuel efficiency and safety are the key factors that drive the vehicle business. The main contributors of vehicle comfort are vibration, noise, thermal comfort (temperature), air quality, light, and ergonomics. In this context, compressor noise plays an important role in the comfort of the passengers. Noise can have adverse effect on occupants in the vehicle starting from mild annoyance and may lead to loss of concentration. It is a big challenge for the automotive engineer to find the source of noise and path through which it is transmitted, and eventually to reduce or dampen it during the product development. The objective of this paper is to understand the functioning of various compressor’s noise characteristics in static (i.e. initial engagement of compressor) and dynamic condition (i.e. during compressor running).