New Delhi, Nov. 7 -- Clean air indoors feels like a luxury these days, especially in cities where pollution, dust and dryness can make breathing less pleasant. Many people turn to air purifiers or humidifiers to make their homes more comfortable. Both devices improve indoor air quality but in very different ways. Understanding how each one works and when to use it can help you make the right choice for your space.

Air purifiers are designed to clean the air by removing pollutants, allergens, and odours. They use filters, usually HEPA or activated carbon, to trap particles such as dust, pollen, smoke, and pet dander. These devices are ideal for people who have allergies or respiratory conditions like asthma. On the other hand, humidifiers...