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9000233 Holmes Foam Air Purifier Pre-Filter

9000233 Holmes Foam Air Purifier Pre-Filter

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Quick Overview
  • Holmes Foam Pre-Filter
  • Fits Holmes model HAP422
  • Removes large airborne particulates from the air
  • Extends life of main filter
  • Measures approximately 4" x 19 1/4" x 3/8"
  • For optimum performance, replace filter every 3 months


Your air purifier filter is important for keeping your air pure of harmful contaminates; therefore, it is important that your filter works as efficiently as possible. One of the best ways to ensure that your air purifier works more efficiently is with an air purifier pre-filter. Pre-filters are designed to absorb large airborne pollutants that easily clog an air purifier. This keeps the air purifier more efficient for trapping smaller, more harmful pollutants.

This particular product is a Holmes air purifier pre-filter designed to fit Holmes model HAP422. It uses foam to trap large particulates such as dust particles, pollen grains, pet dander, mold spores, dirt, and debris. It comes in an economically low price, and because it helps prolong the main filter life, it reduces filter replacement costs. This pre-filter measures approximately 4" x 19 1/4" x 3/8" and should be replaced every 3 months for optimum performance. This pre-filter is a great deal for adding an extra touch of filtration to your air purification system. If you are looking for a more affordable way to have better quality air, then order this pre-filter today!