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Still Confused About Masks? Here’s the Science Behind How Face Masks Prevent Coronavirus

As states reopen from stay-at-home orders, many, including California, are now requiring people to wear face coverings in most public spaces to reduce the spread of COVID-19.

Both the Centers for Disease Control and Prevention (CDC) and the W…[더 보기]

Do Air Purifiers Actually Work?

The promise of an air purifier is an enticing one: An appliance designed to cleanse the air in your home, getting rid of all the impurities including odors, smoke, dust, and pet dander. Given the fact that indoor air can have levels of certain pollutants up to five times higher than outdoor air, we get…[더 보기]

Details About Rehabilitation Products

With a group of experienced foreign trade professionals, we supply rehabilitation products especially for patients and elder people, such as different types of walking sticks, E/M-wheelchiars, E/M hospital beds, walking aids, homecare products like commode chair and shower chair, trekking pole and…[더 보기]

Introduction to Partition Walls:

An account of an acoustic newbie's journey from bare walls to a well‑balanced, sonically pleasant space.

The physics of the propagation of sound is immensely complicated, and when the assortment of materials that make up the walls, floors and ceiling (plus any windows, doors and furniture) are added to the equation, it's very d…[더 보기]