filter for improved indoor air. In autumn and winter, the home should be pleasantly warm rather than even cooler. This means that the real benefit of the Oshen Watch is primarily limited to the warmer months of the year. If you want to benefit from purified air during the rest of the year, you should buy a second device without cooling function. Furthermore, the manufacturer leaves it open whether it is possible to remove the dust filter or to clean it. If this function is missing, it is easy to imagine how much dust and other dirt taken in through the air will settle in the filter system over time. After purchase, you should therefore study the user manual carefully to ensure that this point does not pose a risk to the hygiene of the entire Oshen Watch air conditioner. General information about the Mini Air Cooler Mini