Cold Fogger: A device that sprays insecticides in the form of a mist is effective for treating large areas. Foggers can be very effective in controlling large populations of cockroaches. Penetrating into the most inaccessible places, it not only destroys insects, but also settles on surfaces, therefore infecting new pests.
Sprayer: used for targeted killing of insects in hard-to-reach places. This may include treating cracks, crevices and areas around furniture.