Permanent Washable Air Filters

Permanent washable air filters are reusable electrostatic filters for compatible HVAC and commercial air-handling systems. They capture airborne dust, allergens, pollen, and other particles from circulating air, then can be washed and returned to service. Available options support a range of 1-inch filter sizes, including systems that require a nonstandard fit.

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Helpful Buying Guide

How to Choose Permanent Washable Air Filters

Choose a permanent washable air filter by matching its dimensions and frame style to the compatible system opening, then confirm that its MERV 8 filtration level meets the application’s requirements. The products represented here use electrostatic filtration and are designed to be cleaned for continued use.

Visual Guide

Popular examples in this category

Permanent Washable Electrostatic Air Filter, Flexible Frame, MERV 8, 10 x 24 x 1 in.Permanent Washable Electrostatic Air Filter, Flexible Frame, MERV 8, 10 x 24 x 1 in.WBB3145102Permanent Washable Electrostatic Air Filter, Flexible, 16 x 25 x 1 in., MERV 8Permanent Washable Electrostatic Air Filter, Flexible, 16 x 25 x 1 in., MERV 8WBB3145017MERV 8 Permanent Washable Electrostatic Air Filter, Flexible 14 x 14 x 1 in.MERV 8 Permanent Washable Electrostatic Air Filter, Flexible 14 x 14 x 1 in.WBB3145166Permanent Washable Electrostatic Air Filter, Flexible, 16 x 24 x 1 in., MERV 8Permanent Washable Electrostatic Air Filter, Flexible, 16 x 24 x 1 in., MERV 8WBB3145006
Use Cases

Reusable filtration for compatible air systems

These filters are used in compatible HVAC and commercial air-handling systems where a reusable filter is needed to capture circulating dust, allergens, pollen, and airborne particles.

How to Choose

Start with size and fit

Match the filter’s listed 1-inch dimensions to the system requirement. Flexible-frame options are intended to help accommodate systems requiring a nonstandard filter size, while one 20 x 24 x 1 inch option has a galvanized steel frame.

Applications

Support routine maintenance

Maintenance teams, building maintenance personnel, and other users can wash these filters and reinstall them rather than replace them after each use cycle. Some listed filters specify washing every 1 to 3 months.

Additional Information

Electrostatic capture and surface protection

Airflow-generated static charge attracts and retains particles until washing. Many represented options also have an antimicrobial filter surface or material intended to help inhibit mold and bacteria growth on the filter surface.

MERV 8Filtration rating

All represented products state a MERV 8 filtration level.

1 in.Listed depth

The represented filters are listed in a 1-inch thickness.

10 sizesFlexible-frame sizes

Flexible options are represented across 10 listed face dimensions.

1–3 monthsSpecified wash interval

This cleaning interval is stated for certain listed filters.

Comparison Guide

Compare the represented filter types

Use this overview to compare frame construction and the selection details shown in the product summaries.

Filter typeFrame and fitShared filtration and reuse features
Flexible-frame washable electrostatic filtersFlexible frame helps accommodate systems requiring a nonstandard filter size; represented in multiple 1-inch sizes.MERV 8 filtration; electrostatic capture of dust and allergens; washable and reusable. Many include an antimicrobial surface or material.
20 x 24 x 1 in. washable electrostatic filterGalvanized steel frame with expanded-metal support to retain filter media.MERV 8 filtration; airflow-generated static charge captures particles including pollen and dust; washing releases collected debris for reuse.
Washable electrostatic filters with antimicrobial surfaceFlexible-frame options in several listed dimensions.MERV 8 filtration; electrostatic particle capture; antimicrobial surface or material helps inhibit mold and bacteria growth on the filter surface.
Planning Guide

Plan the right fit before choosing

Filter Fit

Confirm dimensions before selecting

The available filters are 1 inch thick and include several face sizes. Select the size that corresponds with the compatible system’s filter requirement. Flexible-frame products are represented in 10 x 10, 10 x 24, 14 x 14, 14 x 24, 14 x 25, 16 x 24, 16 x 25, 18 x 24, 18 x 25, and 18 x 30 inch sizes. A 20 x 24 x 1 inch option is also represented.

  • Match length, width, and 1-inch depth to the system requirement.
  • Consider a flexible frame when the system requires a nonstandard filter size.
  • Choose a formed galvanized steel frame option when that construction is preferred for the compatible application.
Filtration and Reuse

Understand the shared MERV 8 electrostatic design

The represented filters are MERV 8 options that use electrostatic charge generated by airflow to attract and retain airborne particles. Their washable construction allows collected debris to be released during washing so the filter can be returned to service.

  • MERV 8 provides a stated filtration-performance level for compatible systems.
  • Electrostatic filtration captures dust, allergens, pollen, and other airborne particles described in the product summaries.
  • Washable construction supports cleaning and reinstallation rather than routine disposal.
Maintenance Considerations

Plan for cleaning and reinstallation

A washable filter is intended to be cleaned and put back into place for continued use. Where specified, the suggested washing interval is every 1 to 3 months. Several options include an antimicrobial filter surface or material that helps inhibit mold and bacteria growth on the filter surface.

  • Use the product’s listed size and construction when selecting a replacement filter.
  • Wash and return the filter to service as applicable.
  • Review whether an antimicrobial filter surface is included on the selected option.
FAQ

Common questions before buying

What are permanent washable air filters used for?

They are reusable filters for compatible HVAC and air-handling systems that capture airborne dust, allergens, pollen, and other particles described in the product summaries.

What filtration rating do these filters have?

The represented products list a MERV 8 filtration rating.

How do electrostatic washable filters capture particles?

Airflow generates a static charge that attracts and retains airborne particles as air passes through the filter.

Are all listed filters made with flexible frames?

No. Many listed options have flexible frames, while the 20 x 24 x 1 inch option is described with a galvanized steel frame and expanded-metal support.

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