Final answer:
An electronic air cleaner consists of a pre-filter, ionizer, and collector plates, which work together to remove particles from the air. It is essential to regularly change or clean the filters to maintain the quality of the air. Industrial and home electrostatic precipitators are also highly effective in air purification.
So option (A) is correct.
Step-by-step explanation:
The three major components that make up an electronic air cleaner are a pre-filter, an ionizer, and collector plates. These components work together to clean the air. The pre-filter captures large particles before the air passes through the ionizer, where airborne particles are given an electrical charge. The charged particles are then attracted to the oppositely charged collector plates, effectively removing them from the airstream.
HEPA filters, also known as high-efficiency particulate air filters, are another important component often used in air purification systems. With an effective pore size, HEPA filters can capture bacterial cells, endospores, and viruses as air flows through them. Changing these filters regularly is crucial for maintaining good air quality and ensuring the efficiency of the air cleaner.
Large electrostatic precipitators are used industrially and domestically to remove over 99% of particles from the air. By placing a charge on particles and then attracting them to an oppositely charged grid, they effectively remove smoke, dust, pollen, and other particles, thus improving air quality significantly.