Early in the morning in a shared apartment in Boston, the bathroom sink is already wet with splashes of water. A sonic toothbrush stands upright beside the mirror, unfazed by the humidity and constant rinsing. In Phoenix, a construction supervisor finishes brushing after a long shift, cleaning the handle under running water before heading to work. Later that night in San Francisco, a frequent traveler drops the same style of toothbrush into a toiletry bag, confident it will handle another hotel bathroom without issue. Different cities. Different lives. One common expectation: a dependable waterproof sonic toothbrush that works without worry. This everyday confidence begins at the factory level—and for many U.S. buyers, it starts with Aigdoo, a specialized waterproof sonic toothbrush factory serving international markets. Designed for Real Water Exposure, Not Occasional Contact In American households, brushing routines often involve running water, wet countertops, and shared bathrooms. Aigdoo sonic toothbrushes are built with these habits in mind. The sealed body design helps protect internal components from moisture, allowing users to rinse the handle freely after each use. For people who: Brush quickly before work Share bathrooms with family or roommates Prefer brushing in the shower Travel frequently between cities water…
