Most refillable pods can last up to  5-7 days, although that approximation depends on how often you vape, and your vaping habits. An important aspect is knowing the signs of needing to refill your pod, in order to avoid firing the device while there's no liquid, and consecutively burning the cotton of the coil. Two warning signs that you need to change your pod is a reduction in flavor production, and a lower amount of vapor emitted from your pod.

MTL devices are better used with PG-based E-Liquids,  as they provide a throat hit and usually work better with a high nic strength. Mouth-to-lung tanks use thinner e-liquids, like those comprised of 50% PG or higher percentages. This delivers a pleasant throat hit, as well as a very enjoyable flavour.

Nicotine Salt is a “newer” form of nicotine that has been finding its way into eliquid over the past few years. While Pure Base tends to be quite harsh, Nic Salt is much smoother on your throat while inhaled, and due to this, most Nic Salts E-Liquids contain a higher level of Nicotine. Also Nic Salts effect on your body is different; while Pure Base Nicotine gives you a slower and constant Nicotine dose, the first gives you a much faster Nicotine Rush, which your body assimilates at a quicker rate. So, if you are looking to stop smoking, and afraid of Nicotine craving while still wanting a smooth vape, Nic Salts should be your pick, but if you are looking for a harsher throat hit at a lower Nicotine dosage, sticking with Pure Base could be the better option.

Mouth to lung vaping (MTL) refers to inhaling vapor into your mouth and letting it linger there for a while before inhaling it into your lungs. To vape mouth to lung, take a draw on your vape device, hold it in your mouth then inhale it into your lungs before exhaling it.

A mouth to lung kit is a device that replicates the draw of a cigarette. Vaping on an MTL ecig involves a two-part process: first draw vapor in the mouth, and then inhale it to the lungs.