This diving mask delivers clear, fog-free visibility and comfortable breathing with thoughtful design and reliable performance. Key benefits - Dual intake with air entering from both sides keeps the field of view unobstructed, while a central exhaust valve vents exhaled gases to prevent fogging. - High-resolution lenses provide a sharper, clearer view of the underwater landscape. - Anti-fog film offers up to 15,000 hours of anti-fog protection, helping maintain a haze-free view during long sessions. - Waterproof system combined with a floating pearl design helps prevent seawater intrusion for a more comfortable fit. What to expect - Function: two-side air intake, central exhaust vent, anti-fog protection, high-definition lenses. - Performance: clear underwater visibility with long-lasting anti-fog effect. - Durability: waterproof construction designed to keep water out during immersed use. - Design: floating pearl aesthetic feature that contributes to a secure, comfortable fit. Use scenarios - Snorkeling in calm coastal areas to observe coral reefs and marine life with a fog-free, clear view. - Open-water snorkeling or shallow diving sessions where uninterrupted visibility is important for safety and enjoyment. - Underwater photography or video sessions requiring a sharp, unobstructed viewport for frame composition. Note: This description preserves the original product features and intended functions without adding new specifications.