The PAC EM77 is engineered to add lasting value and lower your energy bills. By being able to cool only the room you're in, you can reduce your energy consumption right from the start.

The same is true in a bedroom at night, and the quiet operation makes the Pinguino much easier to sleep with than many other portable or window-mounted air conditioners we have tried. Why would you want to get a portable air conditioner instead of a more conventional split (outdoor unit for central air) or window mount AC? There are several reasons, including:Even in a family-sized tent (the DeLonghi Pinguino is too large for small to medium-sized tents) the Pinguino will keep the climate comfortable without getting too cold, nicely moderated humidity and kept quiet, allowing for a full night’s sleep. The PAC EM77 can also be used in dehumidify-only mode, capable of removing up to 43 litres of water in one day, ideal for protecting your home or office against excessive moisture. It's also a great way to dry your clothes in the cooler months. Some of these advantages centre around the energy efficiency of a portable AC – they can be less costly to run than window mounts, and much less costly than central air, and instead of cooling the whole house, or even the whole room, you can use them just in the space where you spend your time.

With a portable air conditioner, you must also occasionally empty the water reservoir tank – all real air conditioners develop a certain amount of condensation, and unlike window-mount or outside units a portable AC has no easy way to dispose of this water, so keeps it in a large tank. Yes, the Pinguino portable air conditioners offer some of the best, most advanced and most useful innovations and features, but let’s ask a much more important question – how well do they work? While we had only a short time with our Pinguino, we could easily see that the material quality, workmanship, and mechanical workings and operation all indicated the same level of quality that this brilliant Italian company has become known for. The fit and finish, the quiet operation, and even the details of the unit’s engineering – not to mention, again, the DeLonghi name – all suggest a portable air conditioner that will last for many, many years, offering excellent and trouble-free performance.

That said, you need to keep in mind that portable air conditioners like the DeLonghi Pinguino are still real air conditioners, with refrigerant and compressors and the whole works, and as such, they do need a little bit of set-up – but more about that later.

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You work at BID, what a legend.

Some people claim that portable air conditioners can be pretty noisy, and if you are noise-sensitive this should probably be a consideration. But you might want to keep in mind that window- mounted ACs also generate a fair amount of noise, and are often noisier than portables – especially this one. The DeLonghi Pinguino, on the other hand, has an auto-evaporate feature which effectively removes all excess water – no special hoses or extra installation steps, and no tank to empty. The low noise levels of the PAC EM77 will help make those uncomfortable nights a thing of the past. Thanks to the handy timer, you can set it to come on at any time and use the remote to control your comfort from the sofa or under your duvet. This review and buyer’s guide will feature the DeLonghi Pinguino 3-1 Portable Air Conditioner, Dehumidifier, and Fan with Cool Surround Remote (PACEX390LVYN).