The RPM 5’s pods are designed for minimum leakage, but leaks can still occur if you misuse your device. Avoid the following for best results: Overdrawing: the 8-second cutoff on the RPM 5 prevents you from drawing for too long, but you can still suck e-liquid into the mouthpiece before it has a chance to vapourize if you draw too hard. Light suction is all it takes to enjoy big clouds of vapour with this device. Using PG-heavy e-liquids: e-juices with higher PG concentrations are usually thinner than those with more VG, and these e-liquids may leak from your device more easily than thicker ones. Stick to e-liquids with an even ratio, or err on the side of more VG. Overfilling: trying to fit too much e-liquid into your pod can result in leaks. We recommend only filling the pod up to 80% of its full capacity to minimize this risk.