I suffered from a bad flue at Year End.
It took me two weeks to fully recover from it.
My friend introduced and recommended this Cleverin which is manufactured by Taiko Pharmaceutical.
Chlorine dioxide is supposed to free air from bacterias and work as a deodorizer.
It sounds good to me to try it.
I opened a box, put powder in a bottle and screwed the cap.
This small bottle is good for 10 sqm room for a month.
Let’s try it!