So my dad got this Salt Crystal Lamp for a wedding gift that supposedly freshens the air naturally, and I need some help explaining to him why this doesn't actually work. It says on the box: "This lamp is scientifically proven to work like an air purifier. When lit, it can emit negative ions that fight against positively charged particles that cause us to feel stuffy and sluggish." Paraphrasing here, it also vaguely implies that " A heat source will ionize the air with the help of the Himalayan salt that encompasses it." In order for particles to be ionized don't you need a particle emitted with a big charge like an alpha particle? Also, since when do positively charged particles cause mal-effects in humans or tissue? Well, if you could help clarify this to me and furthermore my dad I would be very grateful. Even more interesting is how expensive this lamp was, you'd think it would look sharp but no. It looks like rice that went bad, considering its just a misshapen salt block with bulb in it. But I have a feeling you guys are smart enough to know this is a product that is trying to sell you something you didn't know you need. Thanks!