China's ambassador in Australia has warned that demands for a probe into the spread of the coronavirus could lead to a consumer boycott of Aussie wine or trips Down Under.

Australia has joined the United States in calling for a thorough investigation of how the virus transformed from a localised epidemic in central China into a pandemic that has killed more than 200,000 people, forced billions into isolation and torpedoed the global economy.

In a thinly veiled threat, ambassador Cheng Jingye warned the push for an independent inquest into the origins of the outbreak was "dangerous".

"The Chinese public is frustrated, dismayed and disappointed with what Australia is doing now," he claimed in an interview with the Australian Financial Review published on Sunday.

"If the mood is going from bad to worse, people would think 'why should we go to such a country that is not so friendly to China?' The tourists may have second thoughts," he added.

"It is up to the people to decide. Maybe the ordinary people will say 'Why should we drink Australian wine? Eat Australian beef?'"

Cheng also threatened the flow of Chinese students to Australian universities, a key source of revenue that is already under threat from pandemic travel restrictions.

"The parents of the students would also think whether this place which they found is not so friendly, even hostile, whether this is the best place to send their kids here," he said.

The comments mark a significant escalation in tensions between Beijing and Canberra, whose relations are already strained.

They also reflect the willingness of a new generation of Chinese diplomats to aggressively and publicly push Communist Party interests, using Chinese economic might as leverage if necessary.

Experts have said a full investigation into the coronavirus outbreak could prompt scrutiny of China's rulers and their response to the crisis, and open the door for the type of criticism of the Party that is rarely tolerated.

Cheng also accused Australia of echoing talking points from the United States.

"Some guys are attempting to blame China for their problems and deflect the attention," he said.

"It's a kind of pandering to the assertions that are made by some forces in Washington."

China seizes over 89 million shoddy face masks
Beijing (AFP) April 26, 2020 –

China has confiscated over 89 million poor quality face masks, a government official said Sunday, as Beijing faces a slew of complaints about faulty protective gear exported worldwide.

Demand for protective equipment has soared as nations across the globe battle the deadly coronavirus, which has infected nearly 2.9 million people.

But a number of countries have complained about faulty masks and other products exported by China, mostly for use by medical workers and vulnerable groups.

As of Friday, China's market regulators had inspected nearly 16 million businesses and seized over 89 million masks and 418,000 pieces of protective gear, said Gan Lin, deputy director of the State Administration of Market Regulation, at a press conference.

Regulators had also seized ineffective disinfectants worth over 7.6 million yuan ($1.1 million), she said.

It is unclear how much of the confiscated goods were destined for markets abroad.

In a bid to eliminate poor-quality products, China released new rules Saturday saying even non-medical masks must meet both national and international quality standards.

Exporters must file a written declaration that their medical products meet the safety requirements of the destination country, the ministry of commerce said in a statement.

The tighter rules come after several countries including Spain, the Netherlands, Czech Republic and Turkey were forced to recall hundreds of thousands of shoddy masks and pieces of protective gear imported from China.

The Canadian government last week said that about one million face masks purchased from China failed to meet proper standards for healthcare professionals.

Dutch health officials last month recalled over half a million Chinese masks — which had already been sent to hospitals – after complaints that they did not close over the face properly, or had defective filters.

According to official figures, China's daily mask production has passed 116 million.

In the first two months of the year, a staggering 8,950 new manufacturers started producing masks in China, according to business data platform Tianyancha.

Despite the nationwide crackdown, businesses were continuing with illicit production of medical equipment since it was a way to earn "quick money" Jin Hai, a Chinese customs official said earlier this month.

Over 31.6 million faulty masks and 509,000 protective suits destined for export had been confiscated by port officials as of mid-April, he said.