New industry standard introduced: In April 2026, the China Household Electrical Appliances Association released a new draft standard for "Electric Toothbrushes" (T/CHEAA 0009—2026). For the first time, the standard clearly defines "electric toothbrushes incorporating intelligent technology" and introduces a vibration displacement metric (≤0.03 mm). This marks a shift in the industry from a "frequency-centric" approach to a results-driven one, requiring products to demonstrate proven cleaning effectiveness and chemical safety.