A guest on this Beijing Television segment explains under which situations you can or cannot reuse masks.

Guests on this Beijing Television segment demonstrate how to remove and dispose of masks properly.

Guests on this Beijing Television segment demonstrate how to put on masks properly.

This Beijing Television segment introduces four categories of masks and situations where they're most useful.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest discusses what is dubbed "the selfish mask."

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks are ineffective against COVID-19.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains which masks should be used under which situations.

In this Beijing Television segment on the types of masks to use during the COVID-19 epidemic, a guest explains the effectiveness of a disposable medical mask.

A Beijing Television segment on the types of masks to use during the COVID-19 epidemic.

It's the people that make history.

Liu Yong's "Lantern Festival at Longshan Temple" tells a multitude of stories simultaneously.

Mastering the use of the acupoints takes decades of practice.

Liu Yong further explains the intricacies of his painting, "Lantern Festival at Longshan Temple."

Taiwanese opera and the Longshan Temple are early symbols of Taiwanese culture.

This video introduces another acupoint, the "Chungwan," further supporting the principle that "All it takes is one needle."

Just like many things, acupuncture is about quality, not quantity.

This video demonstrates acupuncture insertion into the "Windy Mansion" acupoint.

Acupuncturist Mr. He only needs to insert a needle into one spot to treat a case of knee joint pain. Where will it be?

A simple, almost weightless 100 RMB note carries an abundance of meaning.

A renowned director points out details we don't usually notice in something we use every day.

The host has some fun with acupuncture and the guest's needles are eventually removed.

What mysteries lie in a simple 100 RMB note?

This video explains the origin of the term, "Windy Mansion."

This video is a demonstration of acupoint selection.