I've been thinking about picking one up lately, just to see how good my ventilation is in my home and see if there are any pollution issues. The good ones are like $200, i was wondering if it was worth it or not

Example: https://www.amazon.com/dp/B07YY7BH2W?cafId=b31b8edc-2291-4f1f-bd24-052039b5c0e3&cafASIN=B07YY7BH2W