Seastar Launches New 'Merci Pot S-505' Electric Nasal Aspirator with Enhanced Suction, Portability, and Easy Maintenance, Building on 600,000 Units Sold Series

Seastar Co., Ltd. (Headquarters: Minato-ku, Tokyo; President and CEO: Kazumasa Yamato), a company specializing in the development and sales of medical devices, has launched a new product, the 'S-505,' on Monday, June 15, 2026. This new model from the 'Merci Pot' series, which has achieved cumulative sales of 600,000 units, combines the powerful suction of a stationary device with the portability and convenience of a handheld model.

Development Background of 'Merci Pot S-505'

- Achievements and Areas for Improvement

The 'Merci Pot' series has been widely adopted not just as a baby care product, but as a medical device supporting nasal care at home. It has been introduced in over 2,000 pediatric and ENT clinics nationwide and is trusted by many medical professionals and families. Domestically, it has received awards such as the 'Mamari Kuchikomi Taisho' and 'Mothers Selection Award,' while in the U.S., it has won the 'PRODUCT of the Year Award' and 'TOP CHOICE AWARD,' earning high praise both domestically and internationally.

Since infants cannot blow their noses independently, nasal congestion can affect their sleep, feeding, and mood, becoming a daily burden for caregivers. However, in the traditional electric nasal aspirator market, stationary models with strong suction are often limited in where they can be used, while portable handheld models have been criticized for insufficient suction power. Additionally, the hassle of cleaning after use has been a burden for consistent daily nasal care.

- Addressing Market Challenges with a Design Focused on 'Daily Usability'

As a pioneer that created the electric nasal aspirator market from scratch, Seastar Co., Ltd. has focused on these challenges and pursued a new approach to nasal care that emphasizes 'suction power,' 'portability,' and 'ease of maintenance.' The result is the new 'Merci Pot S-505,' which combines the reliable usability of a stationary model with the convenience of a handheld design.

The S-505 achieves a significant reduction in weight and size, going from approximately 800g in the previous S-504 model to just 290g. Designed for easy movement within the home and convenient portability when traveling, it aims to be accessible whenever needed. By making daily nasal care easier and more sustainable, it supports the everyday lives of babies and their families.

Product Overview

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● Dual power source: battery or AC adapter

● Three suction levels to reduce infant discomfort

● Few washable parts for easy maintenance

● Lightweight and compact for portability

● Quiet operation design

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- Three Key Features for 'Daily Usability'

Enhanced Mobility through Lightweight Design and Dual Power

In addition to miniaturization to a palm-sized design (approximately W95 × D52 × H114mm), the device supports dual power sources—AC power and battery operation. Whether in the living room, bedroom, outdoors, in the car, or during a power outage, users can perform nasal care whenever congestion occurs, regardless of location.

Maximum Suction Power of -77kPa

Despite its compact size, the S-505 delivers powerful suction of up to -77kPa, equivalent to that of stationary models. With three adjustable suction levels, users can fine-tune the suction based on the condition of the nasal mucus.

Simplified Maintenance and High Cost-Effectiveness

To reduce the burden of daily maintenance, only two parts—the mucus collection cup and silicone nozzle—require washing. The design centers on these components. Both parts are compatible with boiling sterilization, steam sterilizers, and drying devices. Furthermore, while maintaining functionality, the company has pursued cost reduction through years of research, aiming for an accessible price of ¥7,980 (tax included) for daily nasal care.

- BabySmile's Commitment: Material Selection for Baby Safety

BabySmile's core principle is to use materials free of BPA (Bisphenol A) in products that come into contact with babies' mouths and noses. The 'Merci Pot S-505' follows this philosophy and uses BPA-free materials.

Product Specifications

Product Name: Electric Nasal Aspirator Merci Pot S-505
Recommended Retail Price: ¥7,980 (tax included)

Set Contents: Main unit, mucus collection cup, silicone nozzle (2), suction tube, AC adapter,

USB cable (Type-A to C), dedicated case, driver,

instruction manual, package insert, quick guide

Dimensions: Approx. W95 × D52 × H114mm

Weight: Approx. 290g (including accessories, excluding batteries)

Power Source: 5V 2A or 4 AA alkaline batteries (batteries sold separately); AC adapter included

Medical Device Certification Number: 308AGBZX00003000

Sales Information

Pre-sale begins Monday, June 15, 2026, at 17:00.

Official Shop

https://shop.babysmile-info.jp/view/item/000000000197

Rakuten Market

https://item.rakuten.co.jp/seastar/0000002336/

Company Overview

Company Name: Seastar Co., Ltd.

Established: September 1, 1987

Headquarters: 21st Floor, Shinagawa Season Terrace, 1-2-70 Konan, Minato-ku, Tokyo

Representative: President and CEO Kazumasa Yamato

Business: Development and sales of baby medical devices

Website: https://www.seastar.co.jp/

Inquiries

Contact: Seastar Co., Ltd., Representatives: Shira-gami, Iijima

TEL: 03-6711-5500 FAX: 03-6711-5510 EMAIL: pr@seastar.co.jp