Our bottled blends are not intended to refill your personal MONQ diffuser, nor any other similar device. They are not intended for, and should not be used in any e-cigarette or vape mod. These essential oils are not eJuice! They are intended to be added to your favourite water-based diffuser or aromatherapy necklace, for instance! Simply add 2-3 drops of your preferred bottled blend to a water-based room diffuser (for best results, use a room diffuser with a built-in timer to avoid decreased effect from sensory adaptation). For a sustainable option, try MONQ R, a rechargeable portable aromatherapy diffuser that gives you the ability to switch out different Blend PODs (personal oil diffusers) while still using the same rechargeable diffuser battery, creating less waste.