Asking my friend for HVAC advice

I didn’t know that my friend Sandra was now working at the Heating and Air Conditioning corporation till I went in yesterday to buy a smart control unit. She knew everything about them and was able to hook me up with the right one for my needs. She also helped me program it and now I am all set in my flat and don’t have to worry about increasing the temperature any more. I am going to treat her to dinner one evening for her help and we can also play some tunes because she plays the ukulele and I happen to have one in my stadium. I want to see if she knows anything about HEPA filters because I have been using the cheap ones and want to switch to a washable HEPA so my air quality improves and I stop tossing out the old filters. I’m not sure if they sell those types at her job but I’ll see what she says. I am going to go for a swim in a few hours before the sun gets too strong because it is summer now and the rays are pretty intense. I like to stay out of the sun between 11am and 4pm in the summer as I have had skin cancer removed from my face a few too many times. It is 9:30am and it is already heating up out there a lot. I have my air conditioning system on and my flat is nice and cool and I am grateful for that. I guess today is going to hit 100F out there.