Need Points for an article

What sort of air sanitizers are you thinking of writing about. There are those that remove foul odour and give the room a fragrance which one would like to breathe in. If there is impurity in the air in the form of dust, air bacteria some other particles they definitely would be dangerous to breathe not only for children but for adults too. These particles would surely be breathed in the lungs and cause harm in the long term. The only way to breathe safe in such environments would be to use safety masks that would filter any particles and air bacteria before one breathes in.