Looking for the top 10 air purifiers in India? Daikin Air Purifier is one of the best home air purifiers and eliminates bacteria, mold, hazardous chemical substances and even allergens from your indoor air. The indoor air in your home or office may look clean, but it is actually not. The air inside your home is generally between two to five times more polluted than the air outside. Some factors can make indoor air up to 100 times more toxic than the outdoor environment. Most indoor air pollution emerges from sources that release gases or particles into the air like candles, air fresheners, cleaning agents and other household items.