Computer laptop cooling pad help?

You canned air to clean the intake and exhaust vents of your laptop. The cooling pad needs to blow air on where the laptop's intake is positioned, one well placed fan blowing there is the only place that will make a difference. Multiple fans will only add noise and run down the battery faster since most are usb powered. You may be able to get away without one by placing the laptop on your lap without blocking the intake vent of your laptop.