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Posted by Tradeindia user (03-11-2020)
Usually, it takes 30 minutes to 2 hours for a room air purifier to clean a room. To assess the time, consider its factors like room size, fan speed & purifying coverage.
Activated carbon, cold catalyst filter, HEPA filter, electrostatic filter, UV lights, humidifier, ionizer, photo catalyst, deodorization, & ozone generator are common filters used by a room air purifier.