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Humidifiers Without Filter

Yeti | Nov 4, 2009 |

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There really are only two processes required to maintain a humidifier and that is changing the replacement filter and keeping water in the water tank. In climates that frequently experience cold dry air a humidifier is a great way to combat the extreme dryness. To minimize the required maintenance, there are filter free humidifiers. While it can save money by eliminating the need for replacement filters, it is important that the user knows how to properly use a filter less humidifier.

Dry air is known to cause a myriad of problems to furniture, picture frames, and cabinetry that are made of wood. It is also associated with numerous health problems such as itchy and irritated skin, respiratory problems, nose bleeds and other issues. Most of these problems can be mitigated by raising the relative humidity in the surrounding air.

Most common humidifiers have traditionally relied on an evaporative filter that is wet with water from the water tank. The wet filter is then used to moisten the air by using a fan to blow air over it. As the air circulates through the unit, the filter traps any debris or pollutants before it is released back into the room.

As its name suggests, a filter free humidifier does not use a filter to trap the particles in the air. Instead, the particles are charged electro-statically and passed through a grid. The grid carries a charge opposite the particles in the air which causes the two to stick together freeing the air of pollutants.

There are a number of benefits to being filter free beyond the cost savings of replacement humidifier filters. It is easier to keep the unit clean because the humidifier is designed so that the grid pulls out easily for cleaning. It is just a matter of removing the grid and wiping it down with a cloth.

The electrostatic charge used poses some health concerns about increasing the ozone in the air. This matter is still up for debate and has not been settled conclusively. The general consensus is that the filter less humidifier is safe as long as it is used according to manufacturer instructions.

Just as dryness can cause problems, over humidification poses a number of negative side effects as well. Ensure that the unit is kept clean and properly maintained for best results. Never use a humidifier in a room smaller than what it was designed for to avoid over humidification. This is especially true where furnace humidifier filters are used.