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Also, the filters are said to be in need of replacement when the Pure Cool air purifier is run for about 12 hours a day, for a year. However, Dyson claims that there is no need of opening the filter section and cleaning it from the inside. Its evident that the filter is doing its job but a layman would think that alongside replacement, the filters would need periodic cleaning. These grade of filters should be capable of cleaning particles as small as 0.01 µm from the air.Īfter using the Pure Cool for over two weeks, we noticed that abundant dust gathered on the outermost HEPA filter. Dyson says that the outer HEPA filter on the TP04 is H-13 grade certified, which means that the filter grade is validated for use in hospitals and clean rooms with high requirements. We have already come across this filter configuration while reviewing the TP03, but the length of material used in the HEPA filter has increased this time from 6.7m in the TP03 to 9m in the TP04, thus improving the efficiency. The outer one is a HEPA filter made of glass borosilicate and the inner one is a tris activated carbon filter for odour and Volatile Organic Compound (VOC) removal. The Dyson Pure Cool air purifier (TP04) comes equipped with two filters. However, the company could have also tried to innovate on this front by keeping the functionality intact in some way but with a standard slim adapter that’s tailored for the Indian market. This is an added benefit as the device can handle slight voltage fluctuations.
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The device’s predecessor came with a simple three pin plug that was hassle free but Dyson justifies the new power brick by saying that it can operate between voltage ratings of 100-240V as its developed for global markets.
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It is bulky and we were worried that an accidental drop might break it. The only somewhat irksome factor in the Dyson Pure Cool’s design is its brick-like power adapter. The Dyson Pure Cool air purifier's base from where the air is sucked in for filtering We will talk more about the new features the display adds to the device in the next section. However, the Pure Cool comes equipped with an LCD display so that the said information is easier to access. Previously, any information regarding the air quality of a room could be accessed only when the air purifier was linked with the Dyson app. The air purifier takes up minimum space in a room and due to the unique design, it’s bound to get some attention. The left image shows the front slit, while the right image shows the slit that is used when the device is being operated in diffused modeīoth, the cylindrical base from where the impure air is pulled in and the upper bladeless loop from where filtered air is directed out, are made of glossy ABS plastic, which is sturdy and exhibits good build quality. In this mode, air is still blown out at the same rate and with the same efficiency but via the another slit so that one doesn’t feel too cold.ĭyson Pure Cool has two apertures to propagate air. The feature is certainly a welcomed one as it comes in handy when the ambient temperature is already low but the air indoors is polluted and filtration is required. This secondary slit is wider in size and is situated on the outer edge of the loop for directing, or rather diffusing, the filtered air into the room. Due to the design of the air purifier’s loop, the surrounding unclean air also rushes to fill the void.Īdditionally, the Pure Cool comes with another aperture for operating in ‘Diffused Mode’ of air purification.
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However, it should be noted that not all of the projected air is filtered as a vacuum is created around the outlet when filtered air is propelled out. Thanks to the company’s “Air Multiplier Technology,” the device can propel filtered air farther in a room. The air is then forced out of the upper loop from a 1.5mm thin slit that hurls filtered air at a considerably greater speed, thus enabling the device to double up as a fan. Unfiltered air is sucked in from the base, where the fan is located and is passed through the filters in the process.
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The design is where the Dyson Pure Cool air purifier truly excels as it borrows the same tried and tested design of its predecessor and improves upon it.