1. Drinking water: Safe, harmless, and directly potable.
2. Filtration systems: Remove impurities, enhance taste, reduce costs, and protect appliances.
3.Selection criteria: Choose type (e.g., RO membranes, activated carbon) based on water quality, test contaminants, prioritize certifications and maintenance costs.
4. Duoling system: Multi-stage filtration, smart alerts, low wastewater, and hassle-free after-sales support.