The PureFrezi Ultrasonic Cleaner works effectively with plain tap water for most cleaning tasks. However, for enhanced cleaning power on heavily soiled items, you can add a small amount of dish soap, jewelry cleaning solution, or baking soda to boost performance and achieve even more impressive results.

Yes, the UV sterilization is completely safe thanks to the eye-protection design that only activates UV lights when the lid is fully closed. The system automatically shuts off immediately when you open the lid, preventing any UV exposure and ensuring safe operation for all family members.

You can safely clean gold, silver, platinum, diamonds, and most gemstone jewelry in the PureFrezi Ultrasonic Cleaner. The gentle ultrasonic waves won't damage settings or scratch surfaces. However, avoid cleaning porous stones like pearls, opals, or emeralds, and remove items with loose settings before cleaning.

For optimal oral hygiene, dental professionals recommend cleaning retainers and dentures daily using the PureFrezi Ultrasonic Cleaner. The combination of ultrasonic cleaning and UV sterilization removes bacteria, prevents odor buildup, and keeps dental appliances fresh, making daily cleaning the ideal frequency for best results.

Yes, the generous 300ml capacity allows you to clean multiple small items simultaneously, such as several rings, a pair of eyeglasses, and earrings together. Just ensure items don't overlap excessively and all pieces are fully submerged in water for thorough, even cleaning throughout.

The 3-minute cycle works well for lightly soiled items and daily maintenance cleaning. The 5-minute cycle provides standard deep cleaning for most jewelry and dental appliances. The 8-minute cycle offers intensive cleaning for heavily tarnished or extremely dirty items requiring extra attention and care.

The PureFrezi Ultrasonic Cleaner operates remarkably quietly at only 20-40 decibels, comparable to a whisper or quiet library. The low-noise operation won't disturb conversations, sleep, or daily activities, allowing you to clean items anytime without worrying about bothering family members or neighbors.

Absolutely! The compact 13.3x12.9x10cm size fits easily in luggage, and the universal 100-240V voltage compatibility works worldwide with appropriate plug adapters. The UL-certified power adapter ensures safe operation internationally, making it perfect for maintaining your cleaning routine while traveling anywhere.