As Himalayan salt lamp warms up with a light bulb or flame it emits negative ions into the air. Negative ions cause harmful air particles to clump together and fall to the ground. This process may help relieve symptoms of Asthma, Sinusitis and common allergies. Our Pakistani importer passes monthly inspections that require him to meet health and cleanliness rules in order to maintain his salt mining lease with the government. High quality salt lamps and salt tea light holders ready to ship today.