The main danger, according to many customers, comes from the liquids used for refuelling. But it is worth noting that such formulations are exclusively liquid-based. Heating it does not produce dangerous smoke with resins or combustion products that are found in conventional tobacco products. VGOD SaltNic contains only pure nicotine without any added impurities and resins.
But it is worth noting that E-Juice and SaltNic are still unhealthy because they contain nicotine. If you are contraindicated to such products and are allergic to them, avoid using the devices and using tobacco products.