Brand: Filter King Filter size: 19x21x1 Actual Size: 18.5 x 20.5 x 1 1-Inch Filter MERV 8 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Filter King 19x21x1 size air filters are important parts of whatever air system they are installed in. The filters act as cleaners that trap and absorb particles right out of passing airflow to keep it coming in clean. The indoor air quality of your home benefits from having air filters in place to keep the air coming in clean and clear of irritants. However, the filters do not last forever and will eventually require maintenance and replacement. If they are not replaced, the air filters in your home will grow dirtier over time, causing problems for their systems and eventually your home as a whole.
The air filters in your home are best kept clean and clear so that airflow passes through without any issues. When airflow becomes blocked then your home has a problem when there is no way to cycle out the old air stagnating and drying out inside. The airflow becomes hindered or blocked, which also means that the systems become strained trying to push it through the blockage. The systems resulting increased use of electricity over time leads to possible mechanical damage to your systems and a rise in energy billing.
It is better to have new filters installed before the effects of dirty air filters become more apparent over time. Filter King has fresh, new 19x21x1 size air filters available for purchase. The filters are ready-for-use upon arrival, and we ship orders of two or more out for free. We also offer a subscription option where your orders ship out periodically. The filters themselves rate as an eight on the MERV (Minimum Efficiency Reporting Value) scale. The number indicates their ability to block out irritants like:
Filter King air filters are available for use in multiple air systems including the average home’s furnaces. Furnace filters fit into your home’s system and keep the air pumped in from polluting your home. The filters become dirty like any other though, and will inevitably require replacement. Dirty furnace filters present a serious risk as they block off airflow that has been heated. The resulting rise in temperatures may cause serious mechanical damage and lead to costly repairs.