Wearing a face mask in a public setting is one of the best ways to avoid getting and spreading illnesses including Covid-19, the flu, RSV and the common cold, said Carl Fichtenbaum, MD, endowed professor in the Department of Internal Medicine at the University of Cincinnati College of Medicine and renowned infectious diseases expert.

But choosing which type of mask to use might seem tricky. So, Fichtenbaum recently offered his expert advice for an NBC Select article.

A respirator offers the highest level of protection, according to the Centers for Disease Control and Prevention. But experts say wearing a disposable mask is better than wearing no mask at all. And since some people find them more comfortable, they’ll likely wear them properly and for longer periods of time, reducing viral transmission.  

Disposable face masks are multi-layered, single-use face coverings that create a physical barrier between the wearer’s nose and mouth and their environment. Fichtenbaum said they help block germs from entering the air when the wearer speaks, breathes, coughs or sneezes. Disposable masks also help prevent the wearer from inhaling large germ particles that may be in the air around them.

While shopping for disposable face masks, experts recommend considering price, fit and how many layers it has. More expensive masks don't guarantee better protection. Disposable masks should fit tightly around the nose, mouth and chin. The CDC also recommends buying masks made from at least two layers of material.

Click here for links to shop masks that are highly rated and align with expert guidance.