herlife | homereasons for using Ahumidifier or dehumidifierby linda r. priceBoth humidifiers and dehumidifiers are indispensable for controllinghumidity problems in all types of buildings: commercialreal estate, homes and office buildings. Humidifiers add waterto the environment and dehumidifiers remove it. There aremany reasons for choosing one or the other. Many medicalconditions, IT technology-related problems and building structural issuescan result from either too much humidity or too little in the atmosphere.Relative humidity refers to the amount of moisture in the air comparedto the maximum amount the air can hold. The humanbody prefers a relative humidity of between30 percent and 50 percent. Bacterial growthmay increase if the humidity is higher. Inwinter, the humidity level should bekept between 30% and 40% to preventconditions such as condensationon the windows. Commercialareas, including data processingcenters, need a well-monitoredenvironment for optimal functioningof equipment and datamanagement.As one might expect, thelungs are one of the major organsaffected by the humidity level inthe human environment. Too littleor too much humidity can affect allergyand asthma patients. Too muchhumidity causes fungal infections onthe skin and too little can cause drynessand itchiness. The respiratory system of theyoung, the elderly, and people with respiratoryallergies and lung diseases are more susceptible tocolds and flu when low humidity dries out the tissues.Mechanical devices and equipment (such as electronic componentsand boards, computers, and data centers) require a strictlycontrolled atmosphere for precise functioning. A drier atmosphere cancause static electricity to build up in factory workers and end users.When static electricity is discharged, the items a person is in contactwith can be damaged or destroyed by the electrostatic discharge. Thesame is true for humidity. When certain electronic components areused in a humid atmosphere, data can be corrupted and compromised.Researchers have found that epoxy resins can absorb up to 10 percent oftheir weight, depending on the surrounding atmospheric conditions reducingthe resins’ effectiveness.Excessive humidity in the air or the surrounding environmentcauses problems for the homeowner andher family. In addition to the medical problemspreviously mentioned, excessive humiditysimply feels uncomfortable. The bodyis unable to cool itself because thesurrounding atmosphere is heavywith humidity. Since the body’sperspiration is unable to dry onthe skin and cool us off, we feeluncomfortably hot. Sleeping isdifficult in hot, humid conditions.Damp and musty basementsare another problem forthe homeowner. These conditionsare a breeding ground formold, mildew and other pestswhich thrive in warm, damp andhumid conditions. Generally, it doesn’tmatter what kind of mold is in yourhome, if you can see it or smell it, the CDCrecommends its removal to prevent healthissues. Other pests (such as cockroaches, clothesmoths, fleas, woodlice and dust mites) love the same conditions.In our homes, dry winter heating can cause static electricity buildup;wallpaper to peel; cracks in paint, hardwood floors and furniture;and warping in musical instruments. Too, the groaning and cracking42 <strong>HERLIFE</strong>MAGAZINE.COM
of house joints is annoying. In other words, our environment requiresa certain level of humidity for comfortable living. Humidifiers are themost common solution.Too little or too much humidity canaffect allergy and asthma patients.Too much humidity causes fungalinfections on the skin and too littlecan cause dryness and itchiness.Humidifiers and dehumidifiers are sold both online and from brickand-mortarstores.Models include point-of-use humidifiers and whole-house or furnacehumidifiers. Point-of-use humidifiers include the evaporative type, avaporizer, impeller humidifier (cool mist humidifier), and an ultrasonic humidifier.The low-tech evaporative humidifier can be a temporary solutionfor emergencies. Draping a towel in a stainless steel bowl and weighingit down allows the moisture to evaporate into the surrounding areas andincrease the humidity. Frequent changing of the towel can prevent moldand mildew.The whole house or forced-air humidifiers come in many differentstyles and with different capacities. Consulting an expert will help youdetermine the capacity you need in your building and for your purpose.Every humidifier must be used with regard to the manufacturer’s specificationsso that mold, mildew and mineral deposits are not released intothe air, creating even more problems for the home owner.Dehumidifiers also come in a wide range of types for whole housecomfort. Certain models are suitable for basements, crawl spaces andcommercial uses. Most include hoses for easy disposal of the collectedwater and filters to clean the air.As with most products, point-of-use humidifiers and dehumidifiersare relatively inexpensive, ranging from a few dollars to the hundreds dependingon size and features. Commercial products run in the thousands.However, considering all the problems associated with the relative humidityin our environment, they may be a solid investment and save hundredsof dollars on costly repairs or replacement of other household equipmentand furnishings. For consumers with health issues, they may be morethan just a convenience; they may be a necessity. ■Sources:allergyconsumerreview.com,cdc.gov,energystar.gov,ieeexplore.ieee.org,apc.com,epa.gov.<strong>HERLIFE</strong>MAGAZINE.COM 43