An air cooler, also known as an evaporative air conditioner or swamp cooler, is a machine that cools the atmosphere through a process of evaporation. Water absorbs a lot of heat, and it evaporates faster than dry air, causing the temperature to drop. This cooling mechanism is used in evaporative coolers to lower the room temperature and it uses less energy than refrigeration.
There are many different types of evaporative air coolers. Some are large and can cool an entire room, while others are personal air coolers that can be used in bedrooms or small office spaces. The best choice for you will depend on the size of your space and your budget.
The basic air cooler features a water tank and a fan. It is a great alternative to refrigerated air conditioning because it does not use vapor-compression or absorption cooling cycles, and it requires much less maintenance. Air coolers are also cheaper to operate than air conditioners, and they can be used in places where it is permissible to leave windows open for ventilation.
Air coolers are best used in areas with a dry climate. They can be used in the living room, bedroom, kitchen or an outdoor area. Some evaporative coolers come with an ice pack that helps them to cool the room quickly.
The air cooler works on the principle of evaporative cooling and it is effective in warm, dry climates. It uses less electricity than an air conditioning system and is suitable for homes, offices, shops and other commercial buildings. The evaporative cooling system consists of a large water tank, a powerful fan and a water pump. Warm air is drawn into the water pump and it passes through the cooling pads which have been soaked in water. The cooling pads soak up the water and extracts the extra heat from it, and then the water evaporates and the cooler throws cool air into the room.
Some evaporative coolers feature an anti-mosquito breeding mechanism which is very useful in metro cities where mosquitoes are a serious problem. This is done using Cymbopogon extract which prevents the reproduction of mosquitoes in the still and stagnant water of the coolers.
Most evaporative coolers require ventilation to work properly and this is important as they need an influx of fresh air as well as a way for the newly-cooled air to escape. The amount of fresh air required is defined as the cubic feet per minute (cfm) that the cooler can blow each minute. This number can be found in the product specifications and is an important factor to consider when choosing an air cooler for your home. The larger the room, the higher the cfm requirement. However, too high a cfm may not result in sufficient cooling and can create a lot of humidity as well. To avoid this, choose an air cooler with a cfm rating that is slightly below the maximum capacity of your room.