60 Pieces Car Diffuser Sponge Refill Sticks – Humidifier Filter Replacement Wick (2.75 x 0.31 in)

60 pieces of car diffuser sponge refills for ultrasonic humidifiers. These replacement sticks provide strong absorption, uniform pores, and reliable performance for mini car, office, and bedroom diffusers. Compatible with essential oils.

Each stick measures about 2.75 x 0.31 inches, fits most humidifiers, and should be replaced every 1-2 weeks to protect your device and maintain aroma release.