As stated, I am selling salt crystal lamps.
What are the benefits:
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To enhance airqualities by enriching the air with 'Negative Ions'. When the core of halite is hollowed out, and a light bulb placed inside, the result is a release of negative ions into the atmosphere which clean the air of dust, pollen, dust mites, animal dander and moldspores. That directly will help asthma patient to recover.
Salt Crystal Lamps, when illuminated from inside witha small light, produce a beautiful, natural glow of shades fromorange to yellow.
While most ionizers on the market are man-made machines, the Salt Crystal Lamps are a beautiful, maintenance free,natural alternative from Mother Nature to improve air quality. Withtime, the Salt Crystal Lamps will not reduce in size, color or shape,and will not lose weight, or their ionizing effect!
Below are sample pictures of the salt crystal lamps:


Most of my lamps are of 4.5kg which I will sell at $45, self collect at simei.