Industry First*1 Faucet-Connected Water Purifier "mini Neo Bubble" with Ultra-Fine Bubble Generation Mechanism to be Launched

Takagi Co., Ltd. (Head Office: Kitakyushu City, Fukuoka Prefecture; Chairman and CEO: Izumi Takagi; President and CEO: Atsushi Murasawa; hereinafter referred to as Takagi) will begin sales of "mini Neo Bubble," an industry-first*1 faucet-connected water purifier equipped with an ultra-fine bubble generation mechanism, from July 2026 through its official online store and other channels.

Product Page: https://www.takagi-member.jp/store/jyaguti-orders/detail/1195

This product supports the cleaning of oily stains adhering to dishes, frying pans, and pots, etc., with Takagi's original cyclone bubble shower water stream, which includes ultra-fine bubbles.

[Research Results] Effects of Equipped Ultra-Fine Bubble Function

Industry First! FBIA Certified and Registered Product x Faucet-Connected Water Purifier Equipped with Ultra-Fine Bubbles*1

This product generates approximately 10.5 million*3 ultra-fine bubbles per 1mL of water flow through Takagi's original ultra-fine bubble generation mechanism.

Ultra-fine bubbles are tiny bubbles with a diameter of less than 1 micrometer, and are expected to have cleaning effects on hydrophobic substances such as oil.

Our research confirmed effects such as improved cleaning power for oily stains and promotion of umami ingredient extraction from food ingredients through the cyclone bubble shower water stream.

* "Fine Bubble" and "Ultra-Fine Bubble" are registered trademarks of the Fine Bubble Industry Association.

● Thoroughly cleans oily stains on dishes, frying pans, and pots. Cleaning power is approximately 2.8 times higher*2

The cyclone bubble shower water stream of mini Neo Bubble, which includes ultra-fine bubbles, resulted in approximately 2.8 times higher*2 cleaning power for oily stains compared to conventional shower water streams.

<Survey on Burden of Dishwashing>

In a survey conducted by our company, when asked "What do you find particularly burdensome about dishwashing?", "Oily stains are difficult to remove" was the most frequent answer at 35.0% (700 people).

[Survey Overview]

Target Audience: 2,000 men and women aged 20-60 nationwide

Survey Method: Internet survey

Survey Period: June 2026

Survey Organization: Cross Marketing Inc. (actual survey), Takagi Co., Ltd. (planning)

● Improved extraction of dashi stock. Efficiently extracts umami ingredients

Ultra-fine bubble water has higher umami ingredient extraction power compared to regular water, and we confirmed that it can extract umami ingredients more efficiently compared to conventional products as follows:

1 Umami ingredient of bonito flakes (inosinic acid): Approximately 1.2 times (approx. 18% UP)*4

2 Umami ingredient of kelp (L-glutamic acid): Approximately 1.5 times (approx. 54% UP)*5

3 Umami ingredient of dried shiitake mushrooms (guanylic acid): Approximately 1.3 times (approx. 26% UP)*6

Product Features

● Supports sustainable living with water purification function

This product is equipped with the same water purification function as the conventional faucet-connected water purifier "mini Neo." By using purified water, it reduces the purchase of bottled beverages and contributes to the reduction of plastic waste. Furthermore, when washing vegetables and rice, it removes residual chlorine that decomposes vitamins, thus preserving the original taste and nutrients of the ingredients.

● Approximately 50% reduction in splashing*7. Reduces cleaning burden around the sink

The cyclone bubble shower water stream reduces splashing by approximately 50%*7 compared to conventional shower water streams. In addition to reducing the burden of wiping and cleaning around the sink, it also contributes to faster kitchen resets.

● Approximately 23% water saving effect*8. Eco-friendly design that does not require discarding water

The shower water stream of mini Neo Bubble has a water-saving effect of approximately 23%*8. In addition, since it uses antibacterial ceramic inside the water purifier, it does not require discarding water, contributing to the effective utilization of water resources.

● 2 types of water streams x 4 modes of purified/raw water switching

Switching is possible between ultra-fine bubble shower/straight, and raw water/purified water for each, for a total of four modes.

Ultra-fine bubbles are generated only in the shower water stream.

Product Information

Sales began in July 2026 through the official online store and other channels.

Product Name

mini Neo Bubble

Set Contents

Main unit, water purification cartridge (1 cartridge per box), adapters

Product Number

[White] H790UWT6 [Black] H790UBK6

Official Online Shop

Selling Price (Tax Included)

¥ 6980

Official Online Store

[White] https://www.takagi-member.jp/store/jyaguti-orders/detail/1195

[Black] https://www.takagi-member.jp/store/jyaguti-orders/detail/1196

Product Video

*1 Survey based on information from FBIA certified and registered products (condition 1) and information disclosed by each company, investigating faucet-connected water purifiers equipped with an ultra-fine bubble generation mechanism (condition 2) (condition 3). The survey found that only mini Neo Bubble satisfies all three conditions. (Takagi survey, May 2026) [FBIA Certified and Registered Products]: Products listed in the product certification list and product registration list published by the Fine Bubble Industry Association (FBIA) (as of May 1, 2026). [Equipped with Ultra-Fine Bubbles]: Equipped with an ultra-fine bubble generation mechanism (Ultra-fine bubbles: bubbles with a diameter of less than 1 μm). [Faucet-Connected Water Purifier]: A household water purifier that is attached directly to the tip of a water faucet (faucet outlet) and filters and purifies tap water on the spot for supply (excluding other water purifiers such as countertop, built-in, and faucet-integrated types). (Note) This does not mean that the Fine Bubble Industry Association (FBIA) has recognized it as "industry first," nor does it indicate the superiority of products from member companies or certified products. "Fine Bubble" and "Ultra-Fine Bubble" are registered trademarks of the Fine Bubble Industry Association.

*2 Test conducted by applying water flow (discharge rate: 3.9 L/min, discharge temperature: 20°C) for 30 seconds to a glass plate coated with "simulated dirt (margarine colored with dye) of Φ70mm circular shape and 1mm thickness" left for 1 minute, using the shower water stream of mini Neo Bubble (pore size φ0.3mm x 240 holes) and the shower water stream of the conventional mini Neo (pore size φ0.6mm x 107 holes). The results were obtained by comparing the area ratio of dirt removed by the shower water streams of mini Neo Bubble and the conventional mini Neo, calculated using image analysis software (ImageJ). The luminance threshold for binarization of the image for calculation was set so that the image and the dirt area visually matched, and the area at that luminance threshold was measured to calculate the ratio. The remaining dirt area and removed area at each luminance threshold were measured, and then the cleaning rate = (1 - area of remaining dirt immediately after discharge / initial area of dirt) x 100 was calculated. Cleaning rate of mini Neo Bubble (average of N=3) / Cleaning rate of conventional mini Neo (average of N=3) = approximately 2.8 times. (Takagi survey, April 2026) *Results may vary depending on usage environment and conditions.

*3 Calculated difference in the number of bubbles per 1ml between the raw water before passing through the mini Neo Bubble shower water stream and the discharged water after passing through. Measuring instrument: Nanosight LM10, Supply water: High-purity purified water (water conforming to FBIA's ultra-pure water definition), Water temperature: 22.8°C, Flow rate: 8.0 L/min, Ultra-fine bubble measurement results (average of n=10): Discharged water after passing through [Quantity: average approx. 15.6 million/ml] [Bubble size: average diameter approx. 0.37 μm, mode diameter approx. 0.32 μm], Raw water before passing through [Quantity: average approx. 5.1 million/ml] [Bubble size: average diameter approx. 0.30 μm, mode diameter approx. 0.26 μm], Difference in quantity between discharged water after passing through and raw water before passing through: approx. 10.5 million/ml (Measured by Takagi and an external testing organization on March 19, 2026) *Values may vary depending on water quality, environment, and time of year.

*4 Test conducted under the following methods and conditions, and compared and evaluated. (Results may vary depending on usage environment and conditions.)

[Raw Water]: Tap water (water temperature approx. 15°C) [Test Water]: Discharge from mini Neo Bubble purified shower (ultra-fine bubble water), Discharge from mini Neo Bubble purified straight stream (normal water). [Test Method]: In an environment of approx. 21°C room temperature, 6 g of bonito flakes in a tea bag were placed in a 200 mL container, and 200 mL of water was poured at a flow rate of 5 L/min. After 10 minutes, the bonito flakes were removed, the obtained extract was filtered through a microfilter, and 10 measurement samples were prepared for both types of water. [Measurement Method]: Using high-performance liquid chromatography, the amount of inosinic acid was measured for the 10 measurement samples of both types of water, and the average value was calculated for each. [Result Calculation]: (Average inosinic acid content of ultra-fine bubble water / Average inosinic acid content of normal water) was calculated, resulting in approximately 1.2 times (approx. 18% UP). (Takagi survey, March 2026)

*5 Test conducted under the following methods and conditions, and compared and evaluated. (Results may vary depending on usage environment and conditions.) [Raw Water]: Tap water (water temperature approx. 14°C) [Test Water]: Discharge from mini Neo Bubble purified shower (ultra-fine bubble water), Discharge from mini Neo Bubble purified straight stream (normal water). [Test Method]: In an environment of approx. 22°C room temperature, 1 g of kelp cut into pieces was placed in a 200 mL container, and 200 mL of water was poured at a flow rate of 5 L/min. After 10 minutes, the kelp was removed, and the obtained extract was used as the measurement sample, with 10 measurement samples prepared for both types of water. [Measurement Method]: Using a dedicated reagent, the color was developed for the 10 measurement samples of both types of water, and the L-glutamic acid content was measured by the colorimeter. [Result Calculation]: (Average L-glutamic acid content of ultra-fine bubble water / Average L-glutamic acid content of normal water) was calculated, resulting in approximately 1.5 times (approx. 54% UP). (Takagi survey, March 2026)

*6 Test conducted under the following methods and conditions, and compared and evaluated. (Results may vary depending on usage environment and conditions.) [Raw Water]: Tap water (water temperature approx. 20°C) [Test Water]: Discharge from mini Neo Bubble purified shower (ultra-fine bubble water), Discharge from mini Neo Bubble purified straight stream (normal water). [Test Method]: In an environment of approx. 22°C room temperature, 3 g of dried shiitake mushrooms in a tea bag were placed in a 200 mL container, and 200 mL of water was poured at a flow rate of 5 L/min. After 3 hours, the dried shiitake mushrooms were removed, the obtained extract was filtered through a microfilter, and 10 measurement samples were prepared for both types of water. [Measurement Method]: Using high-performance liquid chromatography, the amount of guanylic acid was measured for the 10 measurement samples of both types of water, and the average value was calculated for each. [Result Calculation]: (Average guanylic acid content of ultra-fine bubble water / Average guanylic acid content of normal water) was calculated, resulting in approximately 1.3 times (approx. 26% UP). (Takagi survey, April 2026)

*7 Using the shower water stream of mini Neo Bubble (pore size φ0.3mm x 240 holes) and the shower water stream of the conventional mini Neo (pore size φ0.6mm x 107 holes), the number of water droplets adhering to recording paper placed on an acrylic plate of a water splash test jig in 30 seconds was measured during water flow (discharge rate: 4.0 L/min) for each water stream. Measurements were taken 3 times for each of the 3 samples for both products, and the average value of the 9 measurements was taken as the number of water droplets for each. The calculation was performed as "(Number of water droplets for conventional mini Neo - Number of water droplets for mini Neo Bubble) / Number of water droplets for conventional mini Neo", resulting in approximately a 50% reduction. (Takagi survey, April 2026) *Results may vary depending on usage environment and conditions.

*8 Using the raw water shower water stream of mini Neo Bubble (pore size φ0.3mm x 240 holes) and the raw water shower water stream of the conventional mini Neo (pore size φ0.6mm x 107 holes), the discharge rate (L/min) was measured at a dynamic water pressure of 0.1 MPa using a Coriolis flow meter. Measurements were taken once for each of the 3 samples, and the average value of each discharge rate was used to calculate "(Raw water shower discharge rate of conventional mini Neo - Raw water shower discharge rate of mini Neo Bubble) / Raw water shower discharge rate of conventional mini Neo", resulting in approximately a 23% reduction. (Takagi survey, April 2026)

[Takagi Co., Ltd.]

Representative: Chairman and CEO Izumi Takagi, President and CEO Atsushi Murasawa

Location: 413 Horikoshi, Kokuraminami-ku, Kitakyushu City

Founded: 1961

Capital: 98 million yen

Number of Employees: 1,426

Business Activities: Development, manufacturing, and sales of household gardening products, household water purifiers, and energy-saving products; plastic injection molding processing; mold business.

URL: https://www.takagi.co.jp/