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This is a single sheet of washable foam pre-filter, 24 by 15 inches and a quarter inch thick, that you trim to fit your air conditioner or window unit. It traps dust, pollen and pet hair before they reach the unit, and you rinse and reuse it instead of buying disposable panels. The open foam adds little airflow resistance, so it suits renters and owners who want a cheap, low-effort way to keep coils cleaner. Against cut-to-fit fiberglass or pleated media, it filters coarser particles only and needs regular washing to stay useful.
In stockSold by NispiraReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Buyers rate it well and mostly praise the fit-any-unit trimming and the reusable value. Complaints center on how often it needs washing and its limited filtration of fine dust.
This is a washable, reusable foam filter sheet for air conditioners. It is sold as one sheet that you cut to the size of your unit, and it works as a pre-filter.
The sheet measures 24 inches by 15 inches and is 0.25 inch thick. It captures dust, pollen and pet hair. The dense filter material allows airflow, which helps the air conditioner run smoothly.
To install it, trim the sheet to the size you need and slide it into place.
