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Yang - who put his creation on show in Yiwu, in Zhejiang province, in eastern China - says he was inspired by a series of natural disasters like earthquakes and tsunamis that have rocked the world in recent years.
"Our planet is getting more dangerous and we all need our own emergency escape vehicle to keep us alive," he explained.
Yang's spherical pods - named the Atlantis - weigh six tons and can carry enough oxygen, water and food on board to keep three people alive for up to 10 months.
They can remain fully underwater for nearly a month and the walls are layered with asbestos and silver, so it can resist radioactive fall out after a nuclear attack.
Optional extras include a steering mechanism and a shower.
"There is nothing it cannot withstand," explained Yang.
To prove his point the inventor had himself thrown off a cliff inside one of the pods and then ordered assistants to set fire to it.
Yang has already sold 15 of the 150,000 GBP a time rescue pods to a coal mining company and is now offering them to China's multi-millionaire businessmen.
"There is no point in being wealthy if you can't live to enjoy it," he explained.
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