Why is the bad smell disappear from our factory? Where did they go?

Why is the bad smell disappear from our factory? Where did they go?

There will be much bad smell in our production factory. These smells will not only damage the health of workers but also affect the production environment.
So how to remove these bad smells?
The emergence of photo-oxygen catalysis equipment has solved this problem well. It uses high-energy and high-ozone UV ultraviolet beams, oxidation reaction catalysts, and high-energy ion generators to degrade malodorous gases.
It is widely used in various industrial spraying, printing, and other places where volatile organic waste gas is generated. It can also be used for the deodorization and purification of various malodorous gases.