Air cleaners, also known as air purifiers, are devices designed to remove pollutants and allergens from the air in indoor spaces. They work by using filters or other technologies to capture particles like dust, pollen, smoke, and pet dander, improving overall air quality. Many air cleaners also target odors and harmful gases, making them beneficial for people with allergies or respiratory issues. There are various types of air cleaners, including HEPA filters, which are highly effective at trapping small particles, and activated carbon filters, which absorb odors and chemicals. Some models also use UV light to kill bacteria and viruses, providing an extra layer of protection for your home or office environment.