Grilles and diffusers are the integral elements of a ventilation system. Operation of the ventilation system as a whole depends upon the correct choice of these components to control the movement of air in and out of the premise. A wide range of products and modern functional design of the grilles made by Repa Market enable finding an optimal solution for any interior. The use of quality raw material provides durability of products operating inside and outside the premises. With the current rapidly growing focus on quality of life and comfort requirements in residential and working premises, the importance of ventilation is more significant than ever. Even in the well designed and maintained building, a person can be uncomfortable if the system for air exchange is not working o ris functioning incorrectly. In premises where the air is always fresh, people feel more active, relaxed, healthy, and have good appearance and capacity for work. Installation of a ventilation system is liable.