20x20x1 Payne Carbon Air Purifier Filter

94% of all respiratory problems is caused by indoor air pollution. Indoor air pollution can cause many harmful health risks, such as asthma, allergies, respiratory disease, and heart disease. Indoor air pollution is caused when too little air from outdoors is allowed to enter inside, leading to the accumulation of harmful air pollutants. Air pollutants include pet dander, dust, mold, smoke, chemicals, and gases.

The most absorbent type of filter available is an activated carbon filter. Carbon is "activated" by treating charcoal with oxygen. This creates tiny pores in the carbon that absorb tiny particles such as odors and chemicals. The thicker the carbon, the more efficient the filter. Most carbon filters also come with a pre-filter that traps larger pollutants such as dust particles, pet dander, and pollen. This makes the filter more efficient by keeping it from becoming clogged by larger particles and by keeping it free to trap smaller pollutants.

This 20x20x1 Payne carbon air purifier filter is a replacement pre-filter for whole house HEPA air purifier model P102-550. This pre-filter uses activated carbon to trap larger contaminates, such as dander and dust, before they enter the regular air purifier filter. This allows for less clogging of the filter so that smaller particles can be trapped as they flow through the regular air purifier filter. This pre-filter measures 19.5" x 19.5" x 3/4" and should be replaced every 3 months for optimum performance. This pre-filter keeps the overall filter from becoming too clogged and makes for a cleaner, healthier environment.