These Glade PlugIn refills utilize a sintered porous polymer wick, which is designed to provide a consistent capillary rise for a steady 30-day scent cycle. The reservoir is constructed from polypropylene, a material chosen for its high chemical resistance, ensuring it handles the essential oil profiles without degrading. The internal heating system is optimized to operate at a median temperature of 131°F, facilitating effective evaporation for larger spaces like bathrooms or living rooms.
Because the reservoir seal is not designed to be airtight at all angles, keeping the unit perfectly upright is essential for leak prevention.
Specifications show that these refills are a global standard, fitting most Glade warmers manufactured after 2015. To ensure the best performance after storage in cooler areas, a gentle shake of the bottle before insertion helps prime the oil. Features include an integrated leak-guard gasket, which offers improved security against spills compared to many generic refill options.
For those starting a new fragrance setup, the Glade Coastal Sunshine Citrus starter kit provides both the warmer and the initial refill to get you started.
Explore our comprehensive guide to scent management in our plug-in air fresheners category.