Xiaomi has launched the Mijia Pre-Filter Pro, a whole-house water filtration system that removes impurities before they reach the home’s plumbing. It is now available for pre-order in China on JD.com for 799 yuan ($111).

Xiaomi Mijia Pre-Filter Pro Specifications

The Mijia Pre-Filter Pro is positioned as the first line of defense for household water safety. It uses a 40-micron bionic fish gill filtration membrane to capture sediment, rust, hair, paper scraps, algae, and even insect eggs before they reach your taps.

Xiaomi claims a retention rate of up to 98.6%, ensuring cleaner water and protecting downstream appliances like washing machines, dishwashers, and water heaters from clogging or scale buildup.

The filter features a water-powered self-cleaning system that allows scheduled flush cycles every 7, 15, or 30 days. During cleaning, it performs a 360-degree swirling backwash in which the discs open, high-pressure water jets spray in reverse, and the discs spin rapidly to use centrifugal force for debris removal. 

This is followed by a strong direct rinse to wash away particles. Xiaomi refers to the process as “one open, two turn, three scrub,” designed to restore full filtration performance automatically.

The system is built for whole-home coverage, offering an 8T/h flow rate. That’s enough to keep multiple water outlets running simultaneously, think kitchen sinks, showers, and laundry, without noticeable drops in pressure. In practical terms, Xiaomi says it can filter in one minute the equivalent of about 8.9 barrels of bottled water.

Durability is another selling point. The Pre-Filter Pro features a copper-wrapped aluminum water channel that resists corrosion and prevents the leaching of heavy metals. It is built to handle extreme temperatures from -50°C to 80°C and pressure surges up to 20 bar.

It also offers anti-freeze, anti-explosion, and waterproof protection, making it suitable for different environments. Additionally, the filter sports a built-in battery box that removes the need for an external “backpack” power source, ensuring a cleaner and more compact installation.

In related news, Xiaomi recently introduced an affordable hair dryer capable of drying hair in just one minute, along with a split air conditioner that purifies air, cools quickly, and eliminates viruses.

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(JD)