text: yaar,maine suna hai ki kuch log smart vacuums ka istemal karte hain, kya yeh sach mein ghar ko saaf karne mein madad karte hain?haan, mujhe toh laga tha yeh sirf ek gimmick hai, par jab dekha toh pata chala ki wo kitne efficiently kaam karte hain, waah kya technology hai!