Similar to Himalayan Salt Lamps, candle holders are believed to help remove toxins from the air. The theory is that air-borne pollutants and dust particles are drawn to the salt, causing them to settle on the candle holder's surface and leaving the air cleaner. While Himalayan Salt Candle Holders alone may not be enough to rid your house of all pollutants, they can be used in conjunction with air purifiers and house plants to help improve air quality. In turn, this can reduce your allergies and make your home feel fresh and clean.