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 t…[Leggi tutto]

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…[Leggi tutto]

Medical masks

Also called surgical masks, these are loosefitting disposable masks. They're meant to protect the wearer from contact with droplets and sprays that

may contain germs. A medical face mask also filters out large

particles in the air when the wearer breathes in.

To make…[Leggi tutto]

Partition Walls also called Stud Walls are unloaded walls intended to separate apart within a building, to form an interior room/cabinet, or to separate the laundry area from the rest of the building. Since partitioning walls can be loaded with a roof, therefore, they are built solely for the purpose of…[Leggi tutto]

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…[Leggi tutto]