Philippines President Rodrigo Duterte on Friday told his people they should use gasoline as a disinfectant to clean face masks - and stressed that his advice was not a joke.
The outspoken leader last week made a similar remark about using petrol on masks if cleaning agents were unavailable, which his spokesman had dismissed as a joke.
"What I said is true," Duterte said during a televised address on Friday. "Just go to the gasoline station, and then have some drops, that's disinfectant."
He added: "I am not joking. That is true."
Mask-wearing has since March been mandatory in the Philippines, which has confirmed nearly 90,000 coronavirus infections and more than 2,000 deaths.
It reported Southeast Asia's biggest daily jump in new coronavirus cases for a second straight day on Friday, as Duterte extended restrictions to quell the spread, and promised normality would return in December.
Medical experts said his mask cleaning tips were not recommended.
"You cannot use gasoline as disinfectant. Inhaling it may cause harm and could lead to more problems like respiratory disease," Jose Santiago, President of the Philippine Medical Association, told Reuters.
Health experts recommend soap and water for cleaning reusable cloth masks, and 70 per cent ethyl or isopropyl alcohol for proper disinfection.
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