Lava Plus by Lava Vape USA. Disposable Vape This disposable vape pen comes pre-filled with a smooth, flavored e-liquid, so all you have to do is pop it open and start inhaling. Plus, since it's disposable, you don't have to worry about refilling or recharging - once you're done, simply throw it away and grab another one. Lava Plus Disposable E-Cigarette - 2000 Puffs, 5% (50mg) Salt Nicotine by Weight