air cleaner: meaning, definition, pronunciation and examples

They are largely synonymous in everyday use. Technically, 'purifier' might imply removal of a wider range of contaminants, including gases and viruses, while 'cleaner' often focuses on particles like dust and pollen. Marketing uses them interchangeably.

Not primarily. Most air conditioners cool and dehumidify air. Many have basic filters that trap large dust particles, but they are not designed as dedicated air cleaning devices. Some modern units combine both functions.

It depends on the model, usage, and air quality. Check the manufacturer's instructions, but a common guideline is every 3 to 6 months for pre-filters and 12 to 18 months for HEPA or carbon filters under normal conditions.

No device can remove 100% of allergens. A high-quality HEPA air cleaner can remove a very high percentage (e.g., 99.97% of particles 0.3 microns in size) from the air that passes through it, but it must be correctly sized for the room and run continuously to be effective.

A device, appliance, or system that filters and cleans the air in a room or building by removing pollutants, allergens, dust, smoke, or odours.

Air cleaner is usually neutral, leaning slightly technical/practical. in register.

Air cleaner: in British English it is pronounced /ˈeə ˌkliː.nər/, and in American English it is pronounced /ˈɛr ˌkliː.nɚ/. Tap the audio buttons above to hear it.