Using a dual hose design and a DC inverter compressor, Climax is the world's first high-efficiency portable AC. There is no other portable AC unit like this in the world. Nothing even comes close.Updated If you're looking for a portable air conditioners without a hose or window exhaust, then what you want is an evaporative air cooler (also called a swamp cooler or wet air cooler) which is basically a device that cools the air by evaporating water. Here are some good ones. These require water and with some units, you can even add in ice in order to cool the air down even faster. It works by sucking in the warm air in the room and cooling it down before blowing it back out. This results in a temperature drop.These air coolers won't cool your room down as much as regular air conditioners so if your home/room gets really hot, it's best to get a regular AC unit. The good thing about the air coolers is that it uses less electricity than ACs since they don't use energy hogging components like compressors.

This means you get to save money because as you probably already know, traditional ACs can run the electricity bill up by a lot.There are a lot of evaporative air coolers to choose from varying in strength and coverage in terms of how much square feet of the room it will cool down, how much water it can hold, and other options like varies speeds. These can be used indoor or outdoor and have caster wheels under them for easy portability.There are different models for different room sizes such as the one pictured below, made for medium to large sized rooms.I'd say if you're looking for something that will cool your room down more than a fan would but not take up so much energy or require you to stick part of the unit outside or run a hose outside, then an evaporative air cooler is the way to go.Learn more about evaporative air coolersManufacturer of pictured item: HoneywellWritten There are no ventless air conditioning units currently available, but there is an alternative called an Evaporative Air Cooler.

These units cool the air by evaporating moisture through a material that is kept wet by being partially immersed in a tank of water within the unit.A fan blows air through the material, evaporating the moisture, and creating cold air that can reduces the temperature in the room. Because there is no refrigeration process, there is no exhaust air, and therefore, no vent is needed.It also uses less power than an AC unit, so you could save some money on your electricity bill in the long run.This Honeywell model is pretty solid. Written So far as I know there is no such thing as a portable or room sized air conditioner that works without exhausting the heat removed from room air to some outside space, usually the great outdoors. There are larger units, commercial units, non portable, that can dump excess heat into water in a tank or other reservoir, with the water eventually being replaced with cold water via plumbing.So called swamp coolers or evaporation coolers are NOT AIR CONDITIONERS.BUT they do work rather well IF the humidity of the ambient air is LOW.

They work GREAT in a low humidity desert environment for instance. But the savings on electricity are partially offset by the use of lots of clean fresh water, which can be pretty expensive in a desert environment.ac dc power supply for car ampThey are basically just about entirely worthless on a hot MUGGY high humidity day.ge through wall ac unitsI live in a place where hot days are usually also quite humid, and know maybe half a dozen people who have given evaporative coolers a try. how to replace a capacitor on a ac unitAll of them took them back to the store for a refund.The reason they won’t work on a humid day is that water will not evaporate very well or quickly into air that is already loaded with moisture.DO NOT BUY A SWAMP COOLER EXPECTING IT TO WORK IN A HUMID CLIMATE.

Comfort - Air Conditioning The most important criteria to bear in mind at the time of purchasing an air conditioner are:the type of air conditioner, whether fixed or mobile, one or several units and whether it is also capable of heating by using a heat pump, cooling power, expressed in BTU/h or Watt. You may also consider: energy savings that it may provide, noise levels, which must be low, dehumidification capacity, the presence of additional functions such as: a timer for programming, "sleep" to avoid temperatures dropping too low at the night, air filtering systems, etc. Finally, you must also take into account installation costs for fixed air conditioners and periodic maintenance operations. Generally, air conditioners can be divided into three categories: Portables are a single unit, not fixed or mounted, and can be moved from one room to the next. So-called Split Air Conditioners instead are equipped with one or more internal units fixed to the wall, and an external one.

Finally there are climate control systems, designed to treat the air of an entire home or building. Generally, portable air conditioners require three things: space for the unit; an external window or a hole in the glass or wall that allows it to discharge hot air. Portable air conditioners are extremely versatile units that can be easily moved from one room to another. They are ready for use without installation. However, it is necessary for the machine to be near a window or French door to allow it, through the tube provided, to remove hot and humid air from the air conditioned room to outside. As for all air conditioners, it is necessary to know how many BTU/h are necessary to cool the desired area. The BTU/h calculation is given by a series of valuations on the type of area to be air conditioned:the type and size of rooms facing direction and sun exposure number of windows and types of insulation number of people who are usually in the area to be air conditioned It probably can, but only if the two rooms are adjacent and there is good air flow between the two.