关键在于：冬季用中央供暖，室内空气是循环的。最好把老人房间的通风口盖严密封，室内放一电热取暖。

类似这种

https://www.amazon.com/DeLonghi-Oil-Filled-Radiator-Adjustable-Thermostat/dp/B07WSJZH1G/ref=sr_1_2_sspa?crid=354W8VC77FTL2&dchild=1&keywords=electric+heater&qid=1614297038&sprefix=Electric+hea%2Caps%2C226&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzM1NUTzFKQzRUMzBDJmVuY3J5cHRlZElkPUEwOTI4MDU5MUNEMDczNTRRVjFQOCZlbmNyeXB0ZWRBZElkPUEwMjc0NTcxMjA2Q0Y3R1k5UTNKTiZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

 

还要加带紫外消毒的空气净化器，如这个

https://www.amazon.com/VAVA-VA-EE004-Purifier-Allergens-Operation/dp/B07KM86QSV/ref=sr_1_9?crid=1J1XF1L7J8BV9&dchild=1&keywords=uvc+room+sanitizer&qid=1614297177&sprefix=Uvc%2Caps%2C228&sr=8-9

 

其它房间最好也用这类净化器。

客厅用这个大点的

https://www.amazon.com/Remington-Airetrex-Sanitizer-REM-7365UV-120-Standard/dp/B089YY7VNT/ref=sr_1_4?crid=1J1XF1L7J8BV9&dchild=1&keywords=uvc+room+sanitizer&qid=1614297420&sprefix=Uvc%2Caps%2C228&sr=8-4

 

老人用过的卫生间，马上用这个消毒

https://www.amazon.com/ANCROWN-Professional-Sterilizer-Disinfection-Sterilization/dp/B08SGW3B3W/ref=sr_1_8?crid=1J1XF1L7J8BV9&dchild=1&keywords=uvc+room+sanitizer&qid=1614297420&sprefix=Uvc%2Caps%2C228&sr=8-8