Lennox X6670 Healthy Climate Air Filter (16″ × 25″ × 5″, MERV 11)

Description

Upgrade the air quality in your HVAC system with the Lennox X6670 Healthy Climate filter. Engineered to safeguard your home environment, this filter captures fine particles while maintaining airflow and system efficiency.

Key Specifications & Features

• Nominal Dimensions: 16″ × 25″ × 5″ (actual dimensions slightly less to allow easy fit)
• Filter Type / Media: Pleated box-style media designed for whole-house systems
• MERV Rating: MERV 11 — capable of capturing over 80% of particles down to 3 microns
• Support Structure: Galvanized expanded-metal grid for media support
• Frame Construction: Moisture-resistant double-wall beverage board
• Maximum Operating Temperature: ~180 °F continuous (with occasional peaks to ~225 °F)
• Humidity Tolerance: Suitable for 100% relative humidity environments
• Typical Replacement Interval: 6 to 9 months under normal usage

Benefits & Typical Use Cases

• Improved Indoor Air Quality
  The MERV 11 rating allows this filter to trap pollen, dust, mold spores, pet dander, and other airborne particles, helping reduce allergens and respiratory irritants.
• Better HVAC System Protection
  By capturing fine contaminants before they reach coils and blower components, this filter helps extend the life and efficiency of your heating and cooling equipment.
• Stable Performance Under Varying Conditions
  With resistance to moisture and temperature, it performs reliably even in less-than-ideal environments.
• Easy to Replace
  Its size and design align with standard HVAC cabinets and air-handler units that accept 16″ × 25″ × 5″ box filters.
• Bulk Option Availability
  Many vendors offer multi-packs (e.g., 2-pack or more) to ensure you always have a replacement on hand.

Installation & Maintenance Tips

1. Check Orientation — Make sure the airflow arrow on the filter points in the correct direction (toward the blower).
2. Seal Gaps — Ensure the filter fits snugly with no significant gaps around the frame, using gaskets if necessary.
3. Monitor Pressure Drop — If the system shows increased static pressure or reduced airflow, inspect and consider replacement earlier.
4. Keep Spares — Having a replacement ready ensures you don’t run the system with a clogged filter, which can stress the fan and reduce efficiency.
5. Inspect Regularly — Even before the recommended interval, visually inspect the filter for heavy dirt buildup or discoloration and replace as needed.