On the subject of Air filtering, do we have solutions other then HEPA filter which has a running cost. Something that is one-off or may be paid once a year on a relatively cheaper price?
I also have windows opened most of the time just to let fresh air in. I also dont see any solution on the market that fix the fresh air problem.
I also have windows opened most of the time just to let fresh air in. I also dont see any solution on the market that fix the fresh air problem.