You should consider the purchase of a spot cooler if you regularly need to cool off areas that you cannot hook up to a standard air conditioning unit. Spot coolers, including air cooled spot coolers, water cooled spot coolers, and heat pumps, are extremely effective at significantly dropping the temperature wherever and whenever you need to.
Spot coolers are a good choice for special events, so if you regularly have large groups of people come to un-airconditioned spaces or under-airconditioned spaces, the purchase of a spot cooler may be a wise investment. You may also wish to buy a spot cooler if you regularly experience power failures or failures of your standard air conditioning, or if you operate a data center or a server room that has to be kept cooler than other parts of the building.
Spot coolers can provide a significant amount of cooling power, and can provide you with complete control over the temperature of the space. Some spot coolers can be used along with digital thermostats that are programmable so you can make sure that you are always able to maintain the desired temperature at all times. Portable Air has spot coolers available for sale, so check out the different options to find the right cooler for your needs.