When analyzing toxicity, structural durability, and aromatic purity, a chemically inert, non-porous crystalline borosilicate glass chamber paired with a heavy, premium solid wood base is the absolute superior scientific choice over plastic or porous ceramic models. The Hazard of Plastic & Ceramic: Essential oils contain highly active natural organic compounds. When housed in common plastic reservoirs and subjected to ultrasonic vibration, they cause chemical degradation of the plastic, releasing microplastics and volatile organic compounds (VOCs) into your respiratory tract. Porous ceramic, on the other hand, absorbs past residues, leaving a damp, stale odor. The Crystalline Glass Advantage: Chavanc uses hand-blown, non-porous borosilicate glass that never reacts chemically with oils. It ensures a 100% pure, toxin-free, and mold-free botanical mist. Decisional Guide for Premium Solid Woods: We source distinct, hand-milled timber species engineered to match specific domestic lifestyles: For Cozy Bedside Ambiance & Vintage Aromatherapy: The Chavanc Hearth Edition is hand-carved from Camphor pine. This model is highly recommended for night-time rest, featuring a tactile metallic dial for stepless dimming of its warm amber glow and an 8-hour sleeping cycle.