This flavor is made with Nicotine Salts, only designed to be used to pod systems.
Nicotine Salts are increasing in popularity, the refillable pod systems like Suorin, Phix and SMOK Infinex allow high dose of nicotine, Nicotine Salts are very smooth despite their high nicotine level which make them very satisfying for such a small device. Since you're absorbing more nicotine with each hit you take, then you have to vape less to feel satisfied, every hit is smooth no matter what the nicotine level is and your juice will last longer.
Crisp Apple is one of the stellar premium flavors that Air Factory has produced and Air Factory Eliquids is now in the process of converting all their original flavors into nicotine salt form, thus bringing you Salt Factory E Liquid. Crisp Apple is a refreshing flavor consisting of mouth watering red apple and cool menthol. On inhale your taste buds are going to be flooded by delicious and sweet slices of apple followed by a refreshing cool menthol that is both smooth and chilling. Crisp Apple by Salt Factory Nicotine Salt is packaged nicely in a 30ml Chubby Gorilla bottle available in the nicotine levels 35mg and 50mg.