For Eng. Boyko Kushtilov, innovation is not a modern word. He is a specialist who becomes a true example of ingenuity and talent: inventor of 30 inventions for which patents have been issued and which are becoming solutions with real value for people.
✅His most discussed invention is extremely practical: a window that ventilates without compromising security. Instead of opening wide, the window retracts 6 mm, which is enough for constant air circulation: warm air comes out from above, and cold air comes in from below. This is one of those inventions that achieve ventilation in kitchens and bathrooms, where moisture is a problem.
Another invention by Eng. Kushtilov is aimed at safety in kindergartens and nursing homes: a window that locks at 89 mm. This way, the child’s head cannot come out, and in the event of a draft, there is no chance of it closing.