The amount of airborne water vapour or moisture in your home is commonly referred to as humidity. There are several sources we’re all familiar with like cooking, showering and doing the laundry, but there are sources of humidity you might not have suspected like your pets, indoor plants and even the moisture you contribute when you perspire. We need humidity to keep our living spaces healthy but too much or too little can have a variety of bad consequences. Ideally, humidity should be between 40 and 45 per cent. Too little results in dry skin and hair as well as static electricity and woodwork drying out. When the humidity levels get up over 55 per cent, you can see condensation on walls and windows and mold can even start developing. The important numbers are measured in what’s called relative humidity, which is the percentage of the amount of moisture in the air relative to the full capacity of the air at that temperature. Humidifiers are an important appliance that helps to bring low humidity levels up to acceptable levels. Like other appliances for the home or office, there are several styles to choose from that include warm or cool mist models. You need to get an accurate measure of the size of the area that needs moisture since humidifiers are rated for coverage in square feet. If the problem with low humidity is localized, you can buy and use a portable humidifier. On the other hand, if the issue affects the entire house look into a console model or a flow-through bypass unit can be attached to the house’s duct system. Oosterveld Heating and Air Conditioning is a family-owned and operated business servicing Guelph and the surrounding areas. You can see their fine selection of Lennox equipment at www.oosterveldheating.com or call them at 519-837-2351.