You must be over 18 to purchase this product. We have an effective and monitored age verification process provided by VerifyMyAge. We will not sell to persons that do not meet the age restrictions for this product and by continuing with this purchase you hereby consent to the processing of your personal data for age verification purposes. The Eleaf GS Air atomizer head features two parallel 3.0ohm coils providing an overall resistance of 1.5ohm. Having coils in parallel increases the surface area of the coil for producing increased vapour production without the risk of dry burning when vaping at a high voltage. The GS Air atomizer head can be replaced easily providing you with more control over your vapour production. GS Air Series Atomizer Resistances: ---0.35ohm Mesh Coil 10w - 25w ---0.6ohm Mesh Coil 8w - 20w ---0.75ohm 8w - 25w ---1.