I can't afford expensive virus protection in my own home

I think my sister may be going a little bit crazy. She just told me that she spent a few thousand dollars upgrading her HVAC system. She said she has been super worried about this coronavirus going around. When she found out that humidity kills the virus she contacted her HVAC supplier and asked them to install a whole-home humidifier. While they were working on that, she found out about whole home air purifiers and had them installed that while they were at it. I don’t know where she found the money to do all of this. My sister is all proud that her air purification system has UV lighting and extra strong filters. She also brags about her humidistat and how she can control the humidity in the house. That’s all well and good but I feel that she could have gotten some virus control by spending a lot less money. For example, I am using a HEPA filter in my HVAC system because the HEPA filters capture viruses instead of spreading them throughout the house. I have a portable humidifier but I don’t turn it on very often. Instead, I just open my windows and let some natural sunlight come into the house. I’m not going to pay thousands of dollars for a little UV light. I can’t afford it. My sister said that I can’t afford not to do it but I beg to differ. I guess time will tell though. We’ll see who gets sick. But honestly, I don’t think either one of us will. Not in our own homes anyway.

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