HVAC, short for: heating, ventilation and air-conditioning, is an indoor environmental comfort management system. It is used by private houses, apartment buildings, commercial buildings and other places such as shopping malls and hospitals to control...

These days Karachi is hit with fierce summers, the heat is unbearable along with the unrelenting humidity. Summers are making people furious and dull. Although the city is cornered at one side with the sea but the hot weather shows no limits. Air conditioners...