If you live in the Southern United States you’re well aware of what high humidity can do to the house you live in. Mold, bacteria and fungi all thrive in the humid environment and all can have decidedly unhealthy effects on the human respiratory system. Since very large dehumidifiers can be costly it’s always wise to keep an eye on the local newspaper to find out if any large department store or specialist retailer is having a dehumidifier sale. thedehumidifierexperts.com is one of my favorite online stores. It has also been discovered that dust mites breed prolifically in humid conditions. There are several tell tale signs that can help identify if you have a humidity problem. If you have damp spots in your ceilings or walls, if there is condensation on your household piping, if surfaces have a sticky or damp feeling then chances are you need to investigate the purchase of a dehumidifier. Dehumidifiers use cooled coils to condense the water from the air in the household and thus lowering humidity levels. Of course the larger the house, the larger the dehumidifier required to do the job.  This can be especially useful if you’re on the lookout for big ticket items like whole house dehumidifier systems or dehumidifiers for commercial use. a dehumidifier is essential When visiting any store to see the range of dehumidifiers they have for sale it’s always important to establish in your mind what the dehumidifier is going to be used for. There are several types of dehumidifier and each is suitable for a particular application, ranging from small dehumidifiers to bigger basement dehumidifiers. There are two main water collection and disposal methods used in dehumidifiers. The first is where the condensed water is collected in a tray and emptied by the homeowner and the second is where the water is piped away from the unit and empties into a drain. The second type of unit is more popular amongst homeowners who want the unit to be in operation on a continuous basis with minimum supervision. The unit with the drip pan automatically switches off when the pan is full. A dehumidifier sale will certainly have enough options to fulfil any buyers’ needs, no matter how big or small. The various dehumidifiers on the market will also be suitable for various room sizes, the purchaser should make sure that the dehumidifier selected will be able to cope with the size of the room. Smaller dehumidifiers are only suitable for smaller rooms, but being portable can be moved from site to site. The larger dehumidifiers are suitable for use in basements or crawlspaces. Dehumidifiers are particularly useful for reducing moisture buildup in basements where excessive moisture is often a problem. Dehumidifiers for basement use can either be permanently installed or can be portable. Without a dehumidifier basement areas and prove unsuitable for many activities as the level of moisture in the air causes wood to warp and electronic equipment to malfunction. This is aside from the health threat of fungi and mold in an enclosed space. Whether you pick up a used unit at a dehumidifier sale or a new unit always ensure that it complies with local statutes regarding noise generation (especially important in apartments) and the operation of electrical goods. Compliance with EPA specifications will ensure that it can do the job it was designed to do.