How often do I need to change my air filter?

There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.

What is MERV?

MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles

Glassfloss 24X24X2PF

Clarcor Air Filtration Polyester Air Filter, 24 x 30 x 1" An inexpensive panel filter offering improved performance over fiberglass. Moisture resistant, coated frame. Graduated density polyester media with fire retardant binder. Suitable for temperatures up to 200 degrees F. Should be changed monthly. UL listed Class II. Available in many standard 1inch and 2 inch sizes. Packaged in cases of 12. ,
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Parker Hannifin 24X30X1PF

Clarcor Air Filteration Polyester Fiber Air Filter, 25 x 25 x 2" An inexpensive panel filter offering improved performance over fiberglass. Moisture resistant, coated frame. Graduated density polyester media with fire retardant binder. Suitable for temperatures up to 200 degrees F. Should be changed monthly. UL listed Class II. Available in many standard 1inch and 2 inch sizes. Packaged in cases of 12. ,
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Parker Hannifin 25X25X2PF

How often do I need to change my air filter?

There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.

What is MERV?

MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles

Clarcor Air Filtration MERV 4 Standard Air Filter 13" x 20" x 1"
Clarcor Filters are a standard grade Air filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. This filter is effective against the following contaminants: household dust, as well as debris and lint. Lasts up to 30 days, comes in a Box of 12.,
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Flanders Precisionaire EZ Fiberglass MERV 4 Standard Grade Disposable Panel Air Filter, 13 x 21 x 1"

• Designed for protection of furnace and central air units in residential and light commercial applications
• EZ Flow II has no media retainer
• The frame is made from heavy chipboard in a 1-piece design that eliminates corner separation
• The filtering media is continuous filament spun glass
• A resinous bonding agent provides rigidity and resistance to media compression
• EZ Flow II is made to function without a retainer, by adhering the frame directly to the media which has a light skin to make it self-retaining
• Sealing is accomplished with a resilient hot-melt adhesive running the full perimeter of the frame on both upstream and downstream sides

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Flanders Precisionaire EZ Fiberglass MERV 4 Standard Grade Disposable Panel Air Filter, 19-7/8" x 21-1/2" x 1"

• Designed for protection of furnace and central air units in residential and light commercial applications
• EZ Flow II has no media retainer
• The frame is made from heavy chipboard in a 1-piece design that eliminates corner separation
• The filtering media is continuous filament spun glass
• A resinous bonding agent provides rigidity and resistance to media compression
• EZ Flow II is made to function without a retainer, by adhering the frame directly to the media which has a light skin to make it self-retaining
• Sealing is accomplished with a resilient hot-melt adhesive running the full perimeter of the frame on both upstream and downstream sides

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Flanders Precisionaire EZ Fiberglass MERV 4 Standard Grade Disposable Panel Air Filter, 20" x 22-1/4" x 1"

Scan Air Filter Polyester Air Filter

• 22-5/8 x 24-1/2 x 1"
  How often do I need to change my air filter?
  
• There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.
  
• What is MERV?
  
• MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles
  
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Clarcor Air Filteration MERV 4 Standard Air Filter, 22 x 22 x 1"
Clarcor Filters are a standard grade Air filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use. This filter is effective against the following contaminants: household dust, as well as debris and lint. Lasts up to 30 days, comes in a Box of 12.,
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Parker Hannifin 22X22X1

Scan Air Filter Polyester Standard Air Filter

• 24 x 25 x 1"
  How often do I need to change my air filter?
  
• There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.
  
• What is MERV?
  
• MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles
  
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  ,
  
  

Flanders Precisionaire EZ Fiberglass MERV 4 Standard Grade Disposable Panel Air Filter, 25" x 30" x 1"

• Designed for protection of furnace and central air units in residential and light commercial applications
• EZ Flow II has no media retainer
• The frame is made from heavy chipboard in a 1-piece design that eliminates corner separation
• The filtering media is continuous filament spun glass
• A resinous bonding agent provides rigidity and resistance to media compression
• EZ Flow II is made to function without a retainer, by adhering the frame directly to the media which has a light skin to make it self-retaining
• Sealing is accomplished with a resilient hot-melt adhesive running the full perimeter of the frame on both upstream and downstream sides

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Flanders Precisionaire 25X30X1