Not cool

Unit does not cool. Room is not oversized, followed all directions. I feel a wisp of cool air when I put my hand in front of the vent so it's obviously operating. I give up. Based on price, I bought the unit from some outfit called Best Vacuum, I called them but they were clueless and passed the buck to the manufacturer. The retailer should stick to selling vacuums. I could not reach anyone at the manufacturer Sunkpentown.