It depends on the size of your room and the difference between ambient and desired temperatures, but during our testing the AM09 got up to temperature in under five minutes. Of course, at the time of writing in mid-April, the ambient temperature of roughly 20 degrees is a world away from a cold British winter evening, so we’ll have to return to testing later in the year to see whether it maintains these speeds. It’s not just about performance though, as V8 models are more expensive – and the V6 isn’t cheap in the first place! For this reason, choose the V6 if you want a vacuum for daily cleaning and would prefer a lower price rather than a longer run-time. If you want to use a cordless vacuum for cleaning an entire home, however, then the V8’s 40-minute run-time is the better choice. Purifiers - Dyson purifiers capture 99.95% of potentially harmful pollutants, and keep them trapped. Accessories – Dyson accessories are as sturdy as their vacuums when it comes to removing dust, dirt and allergens.

Despite playing host to a flurry of new features, the AM09 looks virtually identical to its predecessor – I think it looks like an oversized needle with the pointy end removed. Like previous Dyson air multipliers, the latest AM09 oozes style and high-end appeal. It’s easy on the eye, well-constructed, so the fact it looks the same isn’t a problem. You would expect the prices of older vacuums to go down rather than up, but we've found that some Dysons end up being sold for a price that well exceeds the original amount – even several years after they were launched. Fans – Dyson fans have no blade and choppy air, they are also safe, easy to clean, features a sleep timer and comes with a remote control. Jet Focus Control certainly worked during our testing, as we could feel a steady flow of air from several feet away – even with the airflow speed set to a low level. Diffused mode works best when heating a room, taking just a few minutes to increase the temperature of a medium-sized bedroom by three degrees above ambient.

Handheld Vacuums – these are powerful vacuums but light as well cord-free to clean anywhere from the home to the car. It's also worth remembering that having multiple accessories can be more of a hindrance than a help, especially when storing them, which is another reason not to splash out on a model with expensive extras unless you're sure you need them. As well as being far easier on the eye, the AM09 is considerably safer than some alternatives. It won’t scold the wayward hands of any inquisitive child like a an electric bar heater would, for example. After 30 minutes pumping out at full heat, the AM09’s body was comfortable to touch – you could move it easily without discomfort. Models in the same range (eg the V15 Detect range or the V11 range) usually have the same core machine – the only difference is the accessories and supplied floor heads.

Today, Dyson has over 1,000 engineers and about 70,000 employees all over the world from Malmesbury to Malaysia and Chicago to Singapore. The company has also recently invested in a purpose-built motors facility in Singapore where its main purpose is to precision-manufacture each Dyson digital motor, which is the key technology at the heart of the newest Dyson machines. Overall, the 59.5cm tall AM09 is compact and easy to store when not in use. It’s stable despite a footprint small enough to sit comfortably on floor or countertop. A tilting base and oscillating movement allowing for more targeted heating and cooling. Employing the same engineering brilliance behind their immensely popular vacuum cleaners, the Dyson AM09 Hot & Cool Heater is a stylish and effective domestic fan device that also functions as a standard fan to cool down the air. As a result, it is of use not only in the colder months, but throughout every season in the year. It has a temperature range of 1°C - 37 °C. For heating, a thermostatic system is used and once a room has reached the desired temperature, the AM09 will reduce its output so that it is maintained. When it comes to cooling down a room, the unit does not function as an air conditioner, rather, it blows the air around the room to create a fresh and cooling effect. Dyson AM09 Hot & Cool: Stylish Humidifiers – Dyson humidifiers are scientifically proven to hydrate dry air for a healthier environment Based on historical pricing data, we think these prices represent genuinely good savings on some of Dyson's most popular cordless models:

You're Hot & You're Cold

For the budget-minded, there are other space heaters that heat equally as well as the Dyson and won’t bust your budget. Important Update: Look to other retailers The Jet Focus mode is a huge success, too. It might sound like a lot of hot air, but by any name it’s a brilliant advancement.

Perhaps more impressively is how the AM09 manages to achieve this while being significantly quieter than the outgoing AM05. The improved motor is barely audible on the lowest heat setting, and only slightly louder on the lowest fan levels. We could comfortably get to sleep with the fan on a medium setting, and it didn’t prove distracting when watching TV or having a conversation during the daytime either. It’s a welcome improvment over the old model and a major selling point for anyone with a loud, traditional fan heater. In terms of performance, the V8 is clearly the superior vacuum. The longer battery life and improved bin design make it better suited to thorough cleaning. It has a slightly lower suction power on normal mode, but the V8 engine is more powerful on max mode. V8 models also come with Dyson’s best floor heads for more effective carpet and hard floor cleaning. Refurbished handheld and cordless vacuums, fans, heaters and humidifiers are guaranteed for one year.

As noted earlier, the headline new feature on the AM09 is its Jet Focus tech, which lets you project the warm or cooling airflow at an individual. It uses the Coanda effect, which causes air to charge direction as it travels over a surface, and two aperture rings to regulate the spread and direction of air generated. See our shortlist of the best cordless vacuums to find one that's great value for money. 5. Recycle your old vacuum for free

Dyson Supersonic – this hair dryer has an intelligent heat control for shine. It also features the Dyson digital motor which spins on average 6 times faster than other hair dryer motors at one inaudible frequency – yet is a third of the weight. You want to get hot, or stay cool? As a two-in one device, the AM09 has you covered whether it’s the deepest darkest nights of winter, or a sweltering summer’s day. As a fan heater, it can pump out either fast blasts of cooling air, or warm cosy waves. Heating – the Dyson Hot+Cool fan features a fast even room heating and powerful personal heating as well as the jet focus control. It’s a great, stylish fan and heater that’s perfect for upmarket living rooms, home offices or anywhere that needs what the Dyson offers. The Jet Focus feature works very well, and is something no rival can offer at present. Cylinder Vacuums – the cylinder vacuums of Dyson can remove dust from all sorts of floors and will follow you around your home with greater control.

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The fan and heater are controlled by a remote that magnetically attaches to the top of the unit. The remote was useful for changing the setting of the fan without moving from our seats, but it is the only way to control several features of the fan, so make sure you don’t lose it. Oscillation is one of the remote-controlled features and one of our favorites. The fan moves quietly along a wide arc, delivering a blast of warm air across the length of a room. It also tilts up and down so you can direct the airflow right where you need it. The AM09 looks almost identical to the outgoing AM05, with a tall, oblong-shaped aperture and a chunky base which hides its brushless motor. Dyson has removed almost all of the buttons from the front, replacing them with a single power button and white LCD display showing airflow speed and desired temperature. Without the bundled remote, you’ll only be able to turn the fan on and off, and cycle through target temperatures by holding in the single button on the front of the unit. There’s no option to turn the power and temperature LEDs off, which could be a little irritating if the fan is directly in your line of sight when trying to get to sleep. There is at least a nine hour sleep timer, so you can set it to switch off automatically before you drop off. As with Dyson’s other bladeless fans, hiding the motor in the base means there are no moving parts for children or pets to get hurt on, so you can leave it within reach and not have to worry about trapped fingers. The heating elements are placed inside the inner aperture as well, meaning the outside of the fan stays cool to the touch, but Dyson still suggests not touching it while in use and keeping it out of the reach of children. I bought this model in 2017 for our master bedroom. I wanted a quality fan that could heat and not run up the electric bill. After researching, I chose to spend a bit of extra money on the Dyson AM09. The 3-metre power cord shouldn’t cause you an problems when it comes to plug placement, either – I found this afforded enough freedom to place the fan in any discreet but efficient location. Other Things to Consider