Does the type of mask matter?
Studies have compared various mask materials, but for the general public, the most important consideration may be comfort. The best mask is one you can wear comfortably and consistently, said Chin-Hong. KN95 face mask is only necessary in medical situations such as intubation. Surgical masks are generally more protective than disposable mask, and some people find them lighter and more comfortable to wear.https://www.kn95factory.net/

How do air purifiers work?
Air purifiers usually consist of a filter, or multiple filters, and a fan that sucks in and circulates air. As air moves through the filter, pollutants and particles are captured and the clean air is pushed back out into the living space. Typically, filters are made of paper, fiber (often fiberglass), or mesh, and require regular replacement to maintain efficiency.https://www.kanxone-airpurifier.com/air-purifier/

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 protectors for outdoor sports, epidemic prevention products like face masks, gloves, thermometers ,protective clothing and first aid kit etc.https://www.kaixinmedical.com/....face-mask/medical-fa