Large capacity humidifiers can be purchased through various retailers found on Amazon. Sears also carries a selection of humidifiers, ranging from small capacity for single room use to large capacity for whole house use.
Humidifiers are used to add moisture to the air. Large capacity humidifiers typically add enough moisture to cover multiple rooms or a small house. This moisture is helpful during cold months when heating sources tend to reduce the humidity inside and cause multiple problems, such as static electricity, dry mouth and dry sinuses. Over time, low humidity levels can cause wood shrinkage in molding, furniture and other household fixtures. Humidifiers alleviate these problems.