New and older HVAC systems are typically built with the standard 1” furnace filter rack. Simply increasing the filter width size to 5” can increase its air filtration effectiveness.
- Replace filters every 6 to 9 months versus 2 to 3 months for 1” filters
- Captures particles 1 micron and larger
- Provides higher efficiency as it restricts less airflow than 1’ filters
- Use high Merv rated filter without system operation issues