One-Step Co., Ltd. Fully Launches Inflatable Cooling Equipment 'Mist Wall' as New Standard for Heatstroke Prevention, Ensuring Safety at Harsh Sites and Event Venues
One-Step Co., Ltd. began full-scale provision of its inflatable, portable cooling equipment, 'Mist Wall' and 'Penguin Mist Wall' for event venues, on April 3, 2026. Utilizing unique 'air' technology, these units self-stand in just 5 minutes and are operational within an hour. Their 'W cooling' system, combining air circulation and mist, effectively lowers perceived temperatures, contributing to heatstroke prevention at demanding worksites and events. The company's Air Disaster Prevention Division, established in 2020, develops rapidly deployable disaster prevention and safety products.
📋 Article Processing Timeline
- 📰 Published: April 6, 2026 at 19:00
- 🔍 Collected: April 6, 2026 at 10:30
- 🤖 AI Analyzed: April 18, 2026 at 05:39 (283h 9m after Collected)
One-Step Co., Ltd. (Headquarters: Miyazaki City, Miyazaki Prefecture, Representative Director: Hiroyuki Yamamoto) will begin full-scale provision (sales and rental) of portable cooling equipment 'Mist Wall' and the design model 'Penguin Mist Wall' for event venues, aimed at preventing heatstroke in increasingly severe summer heat, starting April 3, 2026. Utilizing unique 'air' technology, the main unit self-stands in just 5 minutes after being unfolded, and the entire process, including connecting the mist hose, can be completed within 1 hour. The 'W cooling' (evaporative cooling method) combining air circulation and mist effectively lowers the perceived temperature, creating a comfortable resting space instantly, where and when needed.
■ Background of Development
In recent years, the severe summer heat accompanying abnormal weather has become a serious social issue. Improving the working environment at outdoor construction sites and workplaces, and ensuring the safety of visitors (heatstroke prevention) at large event venues, are urgent issues for companies and organizers.
However, conventional fixed mist facilities and large resting areas require significant time and cost for setup, and flexible movement according to site conditions is difficult. Therefore, our company applied its know-how in 'air' technology, which enables rapid setup, to develop this product that can be deployed instantly anywhere by simply inflating it with air, and provides reliable cooling effects with air circulation and mist.
■ 'Mist Wall' (for companies and workplaces)
'Mist Wall' is a practical model that provides a reliable cool-down space for workers in harsh environments.
W cooling effect of air circulation × mist: By combining a large air circulation function and fine mist spray, it effectively lowers the perceived temperature using evaporative heat.
Compatible with all types of sites: A comfortable resting place can be set up right next to temporary construction sites where fixed facilities cannot be placed, or in workplaces where conditions change daily.


▶Product size: Width 5.0m × Depth 0.7m × Height 2.4m
▶Product page: https://air-bosai.com/bosai-gensai/mist-wall/
■ 'Penguin Mist Wall' (for events and commercial facilities)
'Penguin Mist Wall' is a model that adds visual coolness and design to the reliable functionality of W cooling.
Design that delivers coolness visually: Features three adorable penguins against a snowy mountain background. Transforms heatstroke prevention equipment, which tends to be inorganic, into a space that can be enjoyed by children and adults alike.
Eye-catching and symbolic effect: Exhibits an outstanding presence as a 'cooling spot' in large event venues, amusement parks, and waiting lines for sports competitions, promoting appropriate breaks for users.


▶Product size: Width 3.2m × Depth 1.6m × Height 1.7m
▶Product page: https://air-bosai.com/bosai-gensai/peinguin-mist-wall/
■ Overwhelming Setup Performance Common to the Series
Compared to conventional metal frame tents and fixed facilities, it has overwhelming superiority in 'speed' and 'labor saving.'
Only 5 minutes to stand up: The main unit self-stands in just 5 minutes by simply inflating it with an air blower.
Operational within 1 hour: All setup processes, from unfolding the main unit to connecting the mist hose and preparing water supply, are completed in about 1 hour. No large-scale construction by specialized contractors is required.
Handling by a small number of people: Does not require many personnel for setup and dismantling, and is compact when stored, so it does not take up much storage space.
■ About Pricing
This product is available for sale and rental to meet customer needs. We will provide guidance according to the usage period and installation environment, so please feel free to contact us via each product page or inquiry form for pricing.
▶Inquiry/Consultation Form: https://air-bosai.com/contact/#/
▶Other heatstroke prevention products: https://air-bosai.com/against-heatstroke-products/#/
【About One-Step Co., Ltd. Air Disaster Prevention Division】
One-Step Co., Ltd.'s Air Disaster Prevention Division was established in 2020 due to the COVID-19 pandemic.
Starting with the development and commercialization of an 'air-type simple negative pressure room' to isolate COVID-19 infected individuals and providing it to medical institutions, we have developed numerous disaster prevention and safety products utilizing 'air molding technology.'
Our products are lightweight, compact for storage, and can be deployed quickly when needed. They offer speed and flexibility that conventional materials could not achieve in disaster situations and emergency response sites. Furthermore, even when non-standard sizes are required at sites, we can manufacture and deliver original products at low cost and in a short lead time.
Our mission at the Air Disaster Prevention Division is to continue to address customers' on-site challenges, such as 'Can you make something like this?' and provide solutions.

【Company Profile】
Company Name: One-Step Co., Ltd.
Headquarters Location: 4625-1 Imaizumi-ko, Kiyotake-cho, Miyazaki City, Miyazaki Prefecture
Representative Director: Hiroyuki Yamamoto
Business Activities: Development, sales, and rental of disaster prevention, disaster reduction, safety management, and water storage tools
Established: June 2002
【Branch Information】
・Headquarters: 4625-1 Imaizumi-ko, Kiyotake-cho, Miyazaki City, Miyazaki Prefecture
・Kansai Branch: 1283 Shinzaike, Aboshi-ku, Himeji City, Hyogo Prefecture
・Tokai Branch: 531 Shimoemachi, Chuo-ku, Hamamatsu City, Shizuoka Prefecture
・Kanto Branch: 765-1 Okusacho, Wakaba-ku, Chiba City, Chiba Prefecture
【Contact for inquiries / Media contact regarding this matter】
One-Step Co., Ltd.
TEL: 0985-64-5399 (Miyazaki Headquarters)
Email: air@onestep-miyazaki.com
Inquiry Form: https://air-bosai.com/contact/#/
FAQ
What kind of products are 'Mist Wall' and 'Penguin Mist Wall'?
They are inflatable, portable cooling equipment that combine air circulation and mist for 'W cooling' to lower perceived temperatures and prevent heatstroke.
How long does it take to set up these cooling facilities?
The main unit self-stands in just 5 minutes, and the entire process, including connecting the mist hose, can be completed within 1 hour.