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.

448-3

448-3

Trion 455602-125 High Efficiency Duct Mount Media Air Cleaner 24-7/8" x 16-1/4" x 7-1/8" MERV 8, 1400 CFM
Trion air cleaners feature charged-media filters that effectively capture large and small airborne pollutants to MERV 8, MERV 11 or MERV 13 filtration standards. High efficiency media air cleaners can clean large amounts of air while offering whisper-quiet operation. The Trion Air Bear line of ducted media air cleaners easily attach to your home's heating and cooling unit.

• Quick and easy installation
• Air bear filters capture and hold pollutants inside the filter, allowing air to flow freely through the system
• Highly efficient, 100% electrostatically charged synthetic material features extended surface pleats that have a higher dirt-holding capacity than competitive filters
• Mounts directly to heating and cooling systems
• Suitable for use with all types of central forced-air configurations
• Rugged cabinet construction for long life
• 10 years limited warranty on cabinet
• Non-woven, 5" Thick, pleated Air Bear media filter traps particles as small as 1 micron
• Right/left-hand installation

Sid Harvey Item #:455602-125: Replaces Part #:'s : 28474,
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455602-125

455602-125

Trion 455602-225 MERV 8 Air Bear Supreme Media Air Cleaner 21-3/8" x 20-1/4" x 7-1/8"

455602-225

455602-225

Field Controls 46474500 Annual Replacement Kit for UV-500C portable Air Purifier

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46474500

46474500

Trion 447380-010 MERV 8 High Standard-duty Media Air Cleaner 16" x 25" x 5"
Trion air cleaners feature charged-media filters that effectively capture large and small airborne pollutants to MERV 8, MERV 11 or MERV 13 filtration standards. High efficiency media air cleaners can clean large amounts of air while offering whisper-quiet operation. The Trion Air Bear line of ducted media air cleaners easily attach to your home's heating and cooling unit.

• Quick and easy installation
• Air bear filters capture and hold pollutants inside the filter, allowing air to flow freely through the system
• Mechanical MERV 8 filter maintains efficiency under all operating conditions
• High performance MERV 11 and MERV 13 filters, electrostatically charged synthetic material, provide superior efficiency with minimal added pressure drop
• Designed for installations that require a 90 deg duct adapter
• Mounts directly to heating and cooling systems
• Suitable for use with all types of central forced-air configurations
• Space saving design is ideal for basement applications
• Rugged cabinet construction for long life
• Lifetime limited warranty on cabinet
• Non-woven, 5" Thick, pleated Air Bear media filter traps particles as small as 1 micron
• Right/left-hand installation

Sid Harvey Item #:447380-010: Replaces Part #:'s : 28867,
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Trion 447380-010

Trion 447380-010

iWave-M Air Purifier for Ductless HVAC Systems up to 1,600 CFM

4900-35

4900-35

Nu-Calgon 4900-20 I-Wave-r Air Purifier 2,400 CFM
With technology installed in over 100,000 applications, iWave-R is the worlds first self-cleaning, no maintenance needlepoint bi-polar ionization generator designed specifically for treating air in residential duct A/C systems. As the air flows past the iWave-R, positive and negative ions actively purify the supply air, killing mold, bacteria and viruses in the coil and living space. The ionization process also reduces allergens, smoke and static electricity, as well as controlling odors (cooking, pet, VOCs) and other particles (no more sunbeams) in the air without creating ozone or any harmful byproducts. iWave-R treats the air in any brand of residential duct air conditioning systems up to 6 Tons (2400 CFM) in size with no maintenance and no replacement parts. Designed for universal mounting, the iWave-R typically requires only 15 minutes to install inside or outside of duct, or to attach magnetically near the indoor fan in the air handler. Simply connect to power using its patent-pending VAC age input capability. Install between air filter and cooling coil to treat the indoor coil; as an alternative, the iWave-R can be installed in the supply air. iWave-R always works at peak performance, producing over 160 million ions/cc, more than any other ionizer product on the market. Its patent-pending self-cleaning design includes a programmable cleaning cycle that can clean the emitter brushes every 1, 3, 5 or 10 days. The iWave-R is factory set to clean every third day which is adequate for a typical installation. iWave-R does not create black walls as negative-only ionizer products will do.

• Patent pending self-cleaning design ensures ongoing peak performance
• Needle point ionization actively treats air in the living space
• Easily installs in minutes in A/C system
• Universal mounting with magnets
• Flexible design with no replacement parts
• Kills mold bacteria and viruses
• Reduces allergens, odors, smoke, static electricity and other airborne particles
• Reduces ventilation requirements
• Keeps coil cleaner
• Programmable cleaning cycle
• Alarm contact option for secondary notification
• Duct systems upto 6 Tons (2400 cfm)
• 3 years warranty

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Nu-Calgon 4900-20

Nu-Calgon 4900-20

Aprilaire 510 High Efficiency Media Air Filter, 28 x 31 x 4", MERV 11

• 510 air filters helps keep your HVAC equipment running at peak efficiency
• Change Aprilaire 513 air filters once a year
• Patented SelfSeal dramatically reduces air bypass, improving media performance
• Collapsible media with self spacing pleats installs in seconds
• Exclusive media design protects your replacement media business
• Made in USA

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510AA

510AA

Aprilaire 501 Replacement Media Filter for Model 5000 Air Purifier

• Traps 99% of airborne pollen, mold and spore-sized particles
• Eliminates 98% of airborne bacteria-sized particles
• Removes 94% of dust the EPA reports can trigger asthma
• Replace 501 air filters annually
• Trust Genuine Aprilaire filters for best fit and efficiency
• Designed for effective contaminant removal from your air stream

Sid Harvey Item #:501AA: Replaces Part #:'s : 2367,
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Aprilaire 501AA

Aprilaire 501AA

Honeywell Home 50049537-005 MERV 11 Replacement Filter 9 x 11 x 1",
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50049537-005

50049537-005