History

1966 ~ 1990

• • 1966 -

  Successfully developed China's first large-scale hyperbaric oxygen chamber complex.

• • 1986 -

  Developed a differential pressure oxygen discharge device for manned pressure vessels.

• • 1988 -

  Developed a computer-controlled chamber operation system.

• • 1989 -

  Developed a medical hyperbaric chamber with a lightweight self-sealing rectangular door.

• • 1990 -

  Developed China's first 300-meter saturation diving simulation chamber.

• • 1993 -

  Shanghai 701 Yangyuan Hyperbaric Oxygen Chamber Co., Ltd. was established.

• • 1995 -

  Developed a transparent infant chamber and a magnetic coupling sealing transmission device.

• • 1997 -

  Developed a lightweight large-opening sliding door.

• • 1998 -

  Developed a fully automatic low-resistance oxygen inhalation device for chambers.

• • 1999 -

  Developed a PSA oxygen generator, liquid oxygen storage and supply system, and an oxygen inhalation helmet.

1993 ~ 1999

2000 ~ 2004

• • 2000 -

  Developed fiber optic lighting equipment for chambers.

• • 2001 -

  Developed a water spray fire-extinguishing system for chambers.

• • 2002 -

  Developed a new generation single-person transparent chamber.

• • 2004 -

  Launched the first-generation pneumatic sliding door.

• • 2010 -

  Introduced the follow-up lifting door.

• • 2011 -

  Developed a mine rescue chamber, a sealed sliding-door pressurized cabin, a pressure transition chamber, and a micro-pressure chamber.

• • 2015 -

  Introduced the second-generation pneumatic sliding door.

• • 2016 -

  Mr. Yoichiro Yamanobe from Sanki Co., Ltd. (Japan) visited our company

• • 2017 -

  Launched a single-person oxygen pressurized medical stretcher chamber.

• • 2018 -

  Launched a single-person hydrogen pressurized medical chamber with a docking stretcher.

• • 2019 -

  Introduced a single-person oxygen pressurized medical chamber with a triple-linkage door locking system.
  Introduced a negative pressure chamber model from Japan

2010 ~ 2019

2020 ~ 2025

• • 2020 -

  Developed China's first panoramic single-person hydrogen pressurized chamber.

• • 2021 -

  Developed the second-generation micro-pressure chamber and the second-generation oxygen-enriched room.

• • 2022 -

  Introduced an animal hyperbaric oxygen chamber.

• • 2023 -

  Developed an infant chamber (Class III medical device), China's largest square micro-pressure oxygen-enriched chamber, and an ultra-high-pressure oxygen chamber.
  Established the Negative Pressure Research Institute

• • 2024 -

  Launched oxygen-enriched spaces and oxygen-enriched vehicles.
  Completed the manufacturing of the first negative pressure chamber

• • 2025 -

  Continues to innovate and move forward, expanding applications and strengthening global presence.
  Launched mass production of negative pressure chambers