Humidifer is the appliance which increases humidity in the room or a house. There are two types of humidifiers stand alone humidifiers which could be used in any room of your home or central humidifers which are connected to the HVAC system of the whole house.
Levels of Humidity
The amount of humidity in the air varies depending on the wather season and the climate where you live. Usually humidity levels are higher in the summer months and lower during winter season. Generally, humidity in your home should be between 30 and 50 percent. If the humidity levels are too low or too high it could cause problems.
Low humidity levels in your home can cause dry skin, irritate your nasal passages and throat, can cause sneezing and coghing and make your eyes red and itchy. It is very common to have low humidity during the winter season when the central heating system is up and running, especially if you don't have humidifier installed.
High humidity can make your home feel uncomfortable for breathing and can cause condensation on walls, floors and other places in the house which might trigger the growth of bacteria and molds. These allergens can cause respiratory problems especially for older people and trigger allergy symptoms and asthma flare-ups.
The best way to measure humidity in your house is by using hygrometer. You can purchase hygrometer at hardware and department stores. When installing a humidifier, its a good idea to purchase one with a built-in hygrometer which will maintain humidity within a acceptables levels.
The important things to consider in purchasing of a humidifier are precise control, sufficient capacity, trouble-free performance and minimum maintenance. Some models also offer air purification, sterilisation, dehumidification etc. A separate unit for each function will usually give better results, however an all in one solution will certainly appeal to some people.