GFP Replacement Humidifier Filter For Honeywell Model HCM890-20, 4 Pack
Guaranteed Fit Parts (GFP) brand humidifier filters are made to fit exactly like your original filters.  They are constructed of the highest quality materials and will meet or exceed the original filter performance.   GFP brand filters are treated with an anti-microbial coating to help prolong the life of the filter.  In most areas of the country, humidifiers wear out and lose their effectiveness due to mineral deposits being trapped in the filter.  These hard water deposits limit the filters ability to soak up the water and result in increased power consumption and decreased humidity in your home.  Replace your filter regularly for best results.  Humidity levels will decrease in your home once the heater is turned on through the cold winter months. Comfortable relative humidity levels in a home are between 35% and 50%. Humidifiers add moisture to your home by blowing air (from a fan) through a wet filter. The water in the filter then evaporates and is distributed throughout the room. The filter is a key component in the process of adding humidity, and it is important to change your filter frequently. Some filters need to be changed as soon as 4 weeks, during the winter months. If a filter becomes crusty and discolored, then it has probably absorbed too many minerals and particles, thus decreasing the effectiveness of the humidifier. This is also when they can start collecting bacteria and fungi. Whether you are using a single room humidifier, a whole house (furnace) humidifier, or a cigar humidor humidifier, it is important to maintain and change your filters. By doing this you will ensure that your humidifier is functioning at its full potential, and can actually repel items such as bacteria, fungi, viruses and mites.