Why are heat countermeasure items important now?

The number of heatstroke casualties in the workplace is increasing, and as of June 2025, companies will be required to implement heatstroke prevention measures with penalties.

What's the difference from fan-equipped workwear?

Fan-equipped workwear uses the evaporation of sweat for cooling, but its effectiveness decreases in high humidity. This product cools the body directly with ice or water, providing a cooling effect regardless of the environment.

What products are available?

We offer three products: a neck cooler to cool the neck, a vest to cool the back, and ice packs. You can choose based on your work environment and needs.

Providing 'Environmentally-Adapted Body Cooling' for Workers: Three MEDIAID Heatstroke Prevention Items to be Relaunched from April 15

Published Mar 31, 2026 8:00 PM ・ Updated Jun 28, 2026 8:30 PM ・ 4 min read ・ Source: PR TIMES

Nippon Sigmax will relaunch three heatstroke prevention items from its 'MEDIAID' brand on April 15 for workplace heatstroke countermeasures. Against the backdrop of mandatory measures with penalties, the company aims to ensure worker safety by providing body cooling adapted to the environment.

Nippon Sigmax Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; President: Yosuke Suzuki), which develops the Japanese-born daily life supporter brand 'MEDIAID', will restart sales of three heatstroke prevention items from Wednesday, April 15.

Background of MEDIAID Heatstroke Prevention Item Relaunch

In recent years, heatstroke in the workplace has become increasingly serious. The number of casualties requiring four or more days of leave from January 1 to December 31, 2025, was 1,681 (preliminary figures as of the end of December 2025), a significant increase of 40.6% compared to the same period last year (*1). The Ministry of Health, Labour and Welfare is also urging all business sites to thoroughly implement heatstroke prevention measures (*2).

Furthermore, from June 1, 2025, due to the revision of the Ordinance on Industrial Safety and Health, heatstroke countermeasures will become mandatory with penalties, making corporate heatstroke measures an urgent issue.

However, according to a survey of the construction industry (n=1,080) announced by the Ministry of Health, Labour and Welfare, two out of three people at sites where heatstroke occurred were wearing 'clothing with a body cooling function'. Since most of these were fan-equipped work clothes (*3), it is suggested that heatstroke measures not adapted to environments such as high temperature and humidity may not lead to sufficient effects.

*1: Ministry of Health, Labour and Welfare "Status of Industrial Accidents due to Heatstroke in the Workplace in 2025 (Reiwa 7) (Preliminary figures as of the end of December 2025)" p.2

*2: Quoted from Ministry of Health, Labour and Welfare "Reiwa 8 'STOP! Heatstroke Cool Work Campaign' Campaign

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Source: PR TIMES
Category: New Product

Providing 'Environmentally-Adapted Body Cooling' for Workers: Three MEDIAID Heatstroke Prevention Items to be Relaunched from April 15

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Background of MEDIAID Heatstroke Prevention Item Relaunch

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