關鍵在於：冬季用中央供暖，室內空氣是循環的。最好把老人房間的通風口蓋嚴密封，室內放一電熱取暖。

類似這種

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=

 

還要加帶紫外消毒的空氣淨化器，如這個

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

 

其它房間最好也用這類淨化器。

客廳用這個大點的

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

 

老人用過的衛生間，馬上用這個消毒

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