The answer is false.
Certain models of professional, tight-fitting respirators (such as the N95) can protect health care workers as they care for infected patients.
For the general public without respiratory illness, wearing lightweight disposable surgical masks is not recommended. Because they don’t fit tightly, they may allow tiny infected droplets to get into the nose, mouth or eyes. Also, people with the virus on their hands who touch their face under a mask might become infected.
People with a respiratory illness can wear these masks to lessen their chance of infecting others. Bear in mind that stocking up on masks makes fewer available for sick patients and health care workers who need them.