Studies conducted over the past two decades demonstrate that the exposure of the passengers inside a car to the dangerous air pollutants including respiratory irritants, neurological agents, volatile organic compounds (VOCs), carbon monoxide and carcinogens is significantly higher than that of bicyclists, pedestrians and public transfer riders. Increased exposure to these pollutants can produce serious health problems. Benzene is a known carcinogen and VOCs are also likely cancer agents. Almost all the pollutants can irritate the eyes, nose, and respiratory systems of people exposed to them. They also may hinder the development of fetuses and infants. Studies indicate that the elevated levels of auto exhausts can also suppress the immune system, making human beings more vulnerable to colds, influenza, and other respiratory conditions like asthma. Car air filters purify the air inside a car, allowing the passengers to have healthy and clean air to breathe.Car air filters come in two main types: the panel style, as used on most fuel-injected cars, and the radial style, which are usually used on carbureted vehicles. A car air filter is enclosed in a black plastic casing near the center-top of the engine.The air filter traps dirt particles, which can cause damage to engine cylinders, walls, pistons and piston rings. Changing car's filters on a regular basis can have a significant impact on engine life and performance. A good rule of thumb is to change filters once or twice a year, or roughly once every 15,000 miles. Replacing a clogged air filter has two-fold impact on the engine: a fuel economy benefit: up to 10%, which makes for equivalent gasoline savings up to 15¢ per gallon.Dirty and dusty driving conditions will require more frequent filter replacements. It is important to avoid using the wrong size filter in a car.Nowadays, car owners are using 'Nanotechnology' based filters to improve cabin air quality. Such filters contain charcoal layers, which remove odors. These filters allow 'mechanical filtration', in which the fiber material of the filter with pores of a specific size will trap particles larger than the size of the pores. Almost 80% of the cars sold in U.S. include a built-in nanotechnology-based filter.Air Filters Info provides detailed information on home, car, electronic, and HEPA air filters, as well as air conditioner filters and air filter manufacturers. Air Filters Info is the sister site of Air Purifiers Web.
A Look at Electronic Air Filters
Many people mistakenly assume that an air conditioning only controls the temperature of a living space. Air conditioning also involves the cleanliness of the air. Filtration is an excellent way to accomplish air cleaning and provide enhanced levels of comfort to a building's occupants. Continuous exposure to unfiltered air results in asthma, allergies, and breathing problems. Generally, air-conditioning systems include electronic air filters, which use electrical charges to attract and deposit 95% of household allergens and irritants to the human body. An electronic air cleaner is installed between the furnace and the air ducts to improve indoor air filtration throughout the home. The air inside the home circulates through the cooling system, carrying millions of airborne particles with it. When this air is drawn into the system or device, a pre-filter in the electronic filter traps the majority of the allergens and irritants. Those particles that do pass through the pre-filter receive an electric charge inside the filter. Collector plates of the filter attract these particles and hold them until the cells are cleaned. Electronic air cleaners offer the optimum balance between air filtration and system pressure drop (air restriction). There are two main types of electronic filters, namely electrostatic precipitators and charged media filters. In electrostatic precipitators, particles are collected on a series of charged plates, whereas in charged media filter devices, the particles are collected on the charged fibers of the filter. The most efficient filters are electrostatic precipitator, because in most of the electrostatic precipitators, the particles are deliberately ionized (charged) before the collection process, resulting in higher collection efficiency. These precipitators generate approximately 20,000 volts to give dust particles a static electric charge. In order to determine the efficiency of an electronic air filter, there are two tests: the weight-arrestance test and the atmospheric dust-spot test. In the weight-arrestance test, the efficiency is tested on the basis of the weight of the dirt removed by the filter. However, this method will not give any idea as to the removal of smaller dirt particulate, which can be easily inhaled by lungs. The atmospheric dust-spot test determines a filter's ability to capture particles between 0.3 and 6 microns. Whatever test is used and whatever may be the type used, the electronic filter must be cleaned at least once in a month to improve the indoor air quality.Air Filters Info provides detailed information on home, car, electronic, and HEPA air filters, as well as air conditioner filters and air filter manufacturers. Air Filters Info is the sister site of Air Purifiers Web.
What are HEPA Air Filters?
The Environmental Protection Agency has determined that almost 90% of the people spend their time indoors. This means that indoor air quality is much more important than outdoor air quality for most people. HEPA (High Efficiency Particulate Air) filters are recommended by allergists and medical professionals for the removal of all dust particles in the size range of droplet nuclei from the air. The HEPA filter, a mechanical filter, was developed by the Atomic Energy Commission of U.S.A. during World War II to prevent radioactive particles from escaping from plants and laboratories. Those initial HEPA air filters were very bulky compared to those that are produced today.HEPA filters are able to trap 99.97% of particles having the size of 0.3 micron, including harmful fibers, dust, smoke, pet dander, and more. With the capacity to collect dirt particles, which are 1/300th the width of the human air, these filters have high resistance power and cannot be placed directly in heating or cooling systems.These filters are used as the primary filtration systems for electronic clean room assembly, isolation wards, surgical theaters, bioengineering units, pharmaceutical processing units, and other places where the maximum removal of sub-micron particulate is required. They are also used in portable units to supplement a building's ventilation system by providing disinfected air. Doctors are advising the usage of HEPA filters in heating/cooling systems for the prevention and treatment of Tuberculosis. HEPA air cleaners, vacuum cleaners and air filters are essential by law to be used in all equipment for asbestos, lead, toxic chemicals, and mold abatement. The major benefit of HEPA filters is that they can remove Volatile Organic Compounds (VOCs) which are the gases that are released from household chemicals and synthetic materials. If filtration systems do not contain HEPA filters, all the toxic particles trapped in the room are left unfiltered. The price of portable HEPA filter unit ranges from approximately $100 to $3500, depending on the size of the unit.Air Filters Info provides detailed information on home, car, electronic, and HEPA air filters, as well as air conditioner filters and air filter manufacturers. Air Filters Info is the sister site of Air Purifiers Web.
