Made in Japan since 1984

Instant Water Purifier with Minerals intact

Leading Reputable Brand of Japan

Setting the Standard for Clean Water Since 1970

Mitsubishi Chemical Cleansui is a member of Mitsubishi Chemical Holdings - one of Japan's leading corporations with around 500 branches worldwide and approximately 70,000 employees as of the end of March 2017. High-quality human resources and a professional workplace form the foundation for remarkable and sustained progress.1970

Mitsubishi Chemical Cleansui is the manufacturer and brand owner of Cleansui. On April 1 2010, Mitsubishi Rayon Co. joined Mitsubishi Chemical Group. Since then, Cleansui is no longer marketed under Mitsubishi Rayon Co.

From Mitsubishi Rayon to Mitsubishi Chemical Cleansui

Mitsubishi Cleansui consistently ensures that water retains natural minerals in tap water, is safe, and promotes good health. Our goal is not only to bring enduring happiness but also to contribute to resolving societal and environmental issues.

Clean water for everyone

Cleansui means Clean Water

Our Technology

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Activated Carbon & Ceramic

Reduce chlorine, odors, harmful chemicals, and soluble lead.

Mesh

Captures larger particles like sediments and rust.

Hollow Fiber Membrane

millions of microscopic pores (0.01-0.1 microns) that trap impurities

We are the changemakers

Cleansui stands out with its innovative hollow-fiber membrane technology, effectively removing 17+3 substances designated by the JIS S 3201 and Japan Water Purifier Association, respectively, while preserving essential minerals.

Its sleek, user-friendly design and unmatched cost-efficiency—producing the equivalent of 450 two-liter bottles of purified water per cartridge (faucet-mounted purifier)—make Cleansui the superior choice for safe and reliable water purification.

WHY CLEANSUI?

Cleansui means clean water (pronounce as clean sui)

Medical-class Filtration Performance
Same state-of-the-art technology used in medical equipment for substance exchange.
Patented net-like Hollow Fibre Membrane
Millions of pores trap minute particles ranging from 0.01-0.1 micron. Completely remove impurities larger than 0.1 micron.
Longest Lasting Cartridges
Original proprietary purification system ensure the highest grade filtration for better quality of life.
Used in Singapore’s NEWater Project
Trusted to produce high-grade potable water from household wastewater

More info

PRODUCT RANGE

Faucet-Mounted

Countertop

Pitcher

Our wide selection of water purifier products caters to various preferences, whether you need a simple filter pitcher or a full-home filtration system. Experience peace of mind with Cleansui's innovative solutions, tailored to enhance your water quality effortlessly.

Undersink

Shower

Replacement Cartridge

Preserves natural minerals in tap water, beneficial for health

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Reduce plastic bottle waste, promoting a sustainable lifestyle

Compact design, high filtration capacity

MITSUBISHI CHEMICAL CLEANSUI

Natural minerals
everyday

Powered by Hollow Fiber Membrane technology, Mitsubishi Cleansui water purifiers preserve essential minerals—supporting your fresh, healthy lifestyle every day.

A glass of wellness, every time

Cleansui is closest to people, purifying the water they use in their daily lives. Using the best technology and best practices, we harness the power of vibrant water and deliver it to people around the world.

We offer a wide range of water-related technologies and services, from our unique hollow fiber membrane filters that thoroughly remove bacteria, small particles, carcinogens etc, to products for home use in a wide range of applications, from kitchens and bathrooms to commercial use in restaurants and other facilities.