Based in Shenzhen, the city that links Hong Kong to mainland China, Tiwari thought the other Kiwi was exaggerating "beyond reasonableness".
"Yes, there is a shortage of masks, however, everyone has masks to wear," Tiwari said.
"I have seen masks in rubbish bins along with other rubbish, however, no one ever picked them up [and] no one is shouting at each other at supermarkets.
Elsewhere, in Shenzhen, everyone was taking the outbreak very seriously, Tiwari said.
Wearing a face mask had become compulsory, while many businesses and schools had been closed down with supermarkets remaining open.
People were buying in bulk which would mean stock would run out before the end of the day, only to be restocked the next morning.
"Things are implemented really quickly in China which is an advantage to control such a new infection," Tiwari said.
"Manual temperature reading is done everywhere you enter such as malls, metro and railway stations, apartment buildings.
"[People] are avoiding touching surfaces as much as they can avoid. Disinfectants are being sprayed everywhere multiple times a day, including building lifts."
Meanwhile, Tiwari's entry into New Zealand was far more casual than when he left China.
Landing from Shanghai on Monday afternoon, only a handful of airport staff were wearing face masks and there appeared to be no border screening.
"One woman from the Ministry for Primary Industries who entered the flight to spray and three staff members at the air bridge had the face masks," Tiwari said.
"As soon as we entered the airport from the air bridge there was no one wearing the face masks. No one whatsoever throughout the airport."
Tiwari said after the declaration section they were processed through immigration without anyone handing out information about the virus or self-isolation.