Water purifier product do↑ ≥‍es not require electri φ↔↕city, is a purely physi☆♦εcal separation technique of u>​ltrafiltration membran£₹₩>e, ultrafiltration membrane filter pr✔÷ecision is 0.01 micron, and the d☆₽iameter of the bacteria, virus←≤ is 0.02-0.40 micron, s↕£​o bacteria and viruses wi ♣☆ll be blocked slaughter super silk i∏Ω₹♥nner membrane, which d​φoes not enter the wate​λr, while being trapped bact&≤ eria, viruses will be excluded as the ♠•♣outfall, so full and ∑δ÷®complete removal of bacteria, viru©♠ses. Bacteria use trapp✘σing methods, much better than a sim‍​πδple sterilization.