Just my opinion but no it's not worth it. but bulk packs of filters and change them every month. clean your furnace yearly and clean carpets every 2 years
https://www.homedepot.ca/en/home/p.b...000455189.html
$5/month. These jokers came to my house because my wife entered my number into a "pprize" for completing a survey. I came home after they had everything set up if it's the same company don't they want something like $8000 for the system