So whilst the best fans definitely work to cool a person thanks to the breeze they create that does a surprisingly good job of cooling the skin, only an air conditioner can dramatically lower the temperature of an entire room or living space. And only an air conditioner will deliver that fridge-like cold air we all crave in a heatwave. Do portable air conditioners cost a lot to run? Like most portable air con units of this power, it isn't light, weighing in at 27kgs, and its most common negative gripe from users is – as with most air con units – its noise. On its lowest, night-time setting the manufacturer advises it produces 53dB of noise. Interestingly, figures aren't given for decibel levels on the highest fan speeds, suggesting they climb quite a lot higher as you scroll upwards through its two additional speed settings.

Officially the unit is described as having a 65dB volume, which to be honest didn’t really mean anything to me initially. In practical terms in some modes it sounded quieter than a vacuum cleaner but louder than the ‘fridge’ that one person described it as in an online review.A window kit is included however the assembly and installation of this is slightly more involved and fiddly, so make sure you allow time for this. Nevertheless, there are powerful models, too. For example, the De'Longhi Pinguino | Portable Air Conditioner with a maximum cooling capacity of up to 10,700 BTU per hour. Beyond that, this air con unit is bulky and heavy. It weighs in at 31.5kg, one of the heaviest units we've tested, so carrying it upstairs is a definite two (strong) person job. But, it looks good. And its curved front, minimal design, and gloss finish all make it far more unobtrusive in a room than you might expect. The build quality is also solid and robust.

Setting yourself a budget will really help you to narrow down your search. It can also help you to avoid the slippery slope of buying a really expensive product that perhaps had advanced specifications that you didn’t need or couldn’t actually afford. It's generally recommended to close doors and windows in the room that you're trying to keep cool, so if you only want to keep a small bedroom cool then you can opt for a cheaper lower BTU unit, however an open plan space will require a much more powerful appliance with a larger BTU. Portability

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Helps to prevent condensation and damp issuesDryer air helps to control mould spore and dust mites2 speed settingsRemote control There’s also the option of the Timer function which allows you to schedule a specific time to start or turn off the appliance. Like all of the settings, this is straightforward to use and programme. Maintenance SMART DESIGN - Filter cleaning reminder function & Self-evaporation system function & Automatic cut off when Water full function,Smart design for better use

POWERFUL COOLING: This 7000 BTU air conditioner provides strong and effective cooling down to 15°C in small, medium and large homes, living rooms, bedrooms and offices.That leads us nicely into price, where we’re going to spend some time looking at the price of RUSSELL HOBBS RHPAC3001 Portable Air Conditioner and seeing how that compares to other Heating and cooling and also looking at the sort of price you can expect to pay for products from Russell Hobbs. MULTI FUNCTIONAL - Cooling, dehumidifying, fan or sleep mode for different need. Dehumidify Capacity : 28L/Day. 2 speed fan mode(low-Speed/Middle-Spped/high-Speed), maximum air circulation: 400 m³ / h.The wind could swivel left-right & Up-to, can supply 140°Wide Angle air in-1 Multiple Function】 It’s not only a personal air conditioner, but also can be use as humidifier and air purifier. Design with spray feature, make you feel much cooler while using spray function as a desk fan. Speeds Setting & Ultra Quiet】 Mini air conditioning design with 3 speeds setting, it has low, middle and high speeds to fit your daily requirements. Upgraded low noise design, won’t disturb your working and sleeping.