Hitachi airHome 400 Series represents true Japanese engineering — designed for long-lasting performance and reliability. Each unit is stress-tested 43 times to ensure durability, safety, and consistent comfort even in extreme conditions. Enjoy peace of mind knowing your air conditioner is built to perform for years.
Experience the next level of cleanliness with Hitachi’s FrostWash technology. It freezes, melts, and washes away dust, bacteria, and mold from the heat exchanger automatically. Tests show up to 99% bacteria and 95% mold elimination, keeping your indoor air fresh and healthy year after year.
The airHome 400 takes care of itself with built-in reminders and an easy-to-remove washable filter. Its Mold Guard function blows air through internal components to prevent odor and bacterial growth — ensuring that every breath you take is clean and comfortable.
With Hitachi’s Complete SafeGuard system, your air conditioner stays protected from power surges, rust, and fire hazards. Features like anti-corrosion fins, fireproof enclosures, and anti-rust paint ensure durability and safety, extending your AC’s lifespan in all environments.
Engineered with the Cascade Vector DC Inverter, airHome 400 minimizes energy use while delivering powerful performance. Rated A++ for energy efficiency, it automatically adjusts fan speed and temperature to reduce electricity bills and environmental impact.
Stay connected and in control with Hitachi’s airCloud Go app. Turn your AC on or off, set timers, monitor energy usage, or pre-cool your home remotely. The Smart-Fence feature even adjusts the temperature automatically as you leave or return — for effortless comfort every day.
Whether it’s a hot summer or a chilly winter, airHome 400 adapts automatically to your preferred climate. With Auto Mode, Powerful Cooling, Dry Operation, and a GoodSleep Timer, it ensures ideal comfort throughout the year with whisper-quiet operation as low as 20dB.
Built with a balance of superior engineering and minimalist aesthetics, airHome 400 perfectly complements any interior. Its Duality Design philosophy brings together performance and elegance — enhancing both the comfort and beauty of your living space.