Q:

How do electrostatic air filters work?

A:

Electrostatic filters use polypropylene and polyurethane materials that create static electricity when air particles pass through them. The static electricity attracts and traps the air particles in the filter.

Electrostatic filters can remove particles as small as 0.3 microns, which is 1/25,000 of an inch. For the purpose of comparison, a dust mite can be 100 to 300 microns, and staphylococcus bacteria is 0.7 microns. Particles between 0.3 microns and 0.9 microns pose the greatest risk to human health. The problem is that the particles within that range are too small for the tiny hairs that line the nose to filter but large enough that they cannot be exhaled. The health benefits are the biggest selling point of an electrostatic filter. People with asthma or allergies would benefit the most because it traps all of the dust, mites, pollen, mold and plant spores and pet dander.

Electrostatic filters also provide economic benefits. Electrostatic filters can be washed hundreds of times with mild soap and water and reused, according to Networx Systems. Standard paper filters cannot be reused. This equates to less money spent on air filters. The electrostatic filters help keep air ducts cleaner, requiring less money spent on contractors to clean the ducts. This also lowers the amount of dust in the house, which means less dusting. The air conditioner coils are cleaner, meaning that the system runs at optimal efficiency, also saving money in the long run.


Is this answer helpful?

Similar Questions

  • Q:

    How does an AC thermostat work?

    A:

    Central Air Conditioner and Refrigeration explains that air conditioning thermostats work by relying on air current. They either have bimetals or a thermistor that sense the air current returning to the return ducts.

    Full Answer >
    Filed Under:
  • Q:

    How does an air-cooled chiller work?

    A:

    An air-cooled chiller is a refrigerating system used to cool or dehumidify air by flowing a refrigerant over an evaporator tube bundle. This process draws vapors out of the evaporator and ultimately allows the pressurized refrigerant to condense on a system of tubes and cool the air. When the refrigerant passes through an expansion device, it lowers its temperature. Air-cooled chillers are used in a number of professional settings.

    Full Answer >
    Filed Under:
  • Q:

    What is an ion fan?

    A:

    An ion fan is a fan that has a built-in ionizer that helps trap airborne particles and more effectively clean the air. Many air purifiers and cleaners have ionizers built into their designs.

    Full Answer >
    Filed Under:
  • Q:

    How does a trolley jack work?

    A:

    A trolley jack is a hydraulic two-piston vehicle lifting device that converts downward force applied to the handle, or first piston point, into upward force at the second piston point. According to Thomasnet.com, the jack also amplifies the initial force. Trolley jacks work reliably on flat surfaces such as asphalt and concrete. However, they are unsafe to use on angled surfaces, grass, gravel and sand.

    Full Answer >
    Filed Under:

Explore