24" x 24" x 1" Replacement Air Filter, Pleated, Merv 8

Purolator Hi-E® 40 Pleated Air Filter – Technical Product Information

The Purolator Hi-E® 40 Series Pleated Air Filter (Model HE40-24X24X1) is a medium-efficiency HVAC filtration element engineered for consistent particulate removal and long service life in commercial and industrial air handling applications. Built with a rigid, moisture-resistant beverage board frame and 100% synthetic hydrophobic media, the Hi-E® 40 maintains uniform performance across varied airflow, humidity, and temperature conditions. Rated at MERV 8, this filter meets ASHRAE 52.2 standards and is suitable for both standalone filtration and use as a prefilter in multi-stage systems.

Technical Specifications

• Product Code: HE40-24X24X1
• Manufacturer: Purolator
• Series: Hi-E® 40
• Model: HE40-STD1
• Nominal Size: 24 x 24 x 1 inch
• Actual Dimensions: 23-3/8 inch (Width) x 23-3/8 inch (Height) x 3/4 inch (Depth)
• Available Depths: 1", 2", and 4"
• Media Type: 100% Synthetic, Un-dyed, Hydrophobic
• Media Color: White
• Frame Material: Moisture-Resistant Beverage Board
• Performance Rating: MERV 8 (per ASHRAE 52.2)
• Airflow Capacity: 1200 CFM (Cubic Feet per Minute)
• Initial Resistance: 0.27 in. wg @ rated airflow
• Final Recommended Resistance: 1.0 in. wg
• Average Dust Spot Efficiency: 35–40%
• Average Arrestance: Approximately 95%
• Maximum Operating Temperature: 225°F (107°C)
• Construction Features:
  • Rigid die-cut beverage board frame designed for dimensional stability under load
  • Mechanically bonded pleated media ensures uniform airflow and minimal bypass
  • Even pleat spacing for optimized dust loading and consistent pressure drop
  • Non-corrosive, moisture-resistant materials for use in humid or variable-temperature environments
• Applications:
  • Commercial HVAC and ventilation systems
  • Industrial air handling and process filtration
  • Institutional, healthcare, and laboratory environments
  • Prefilter use in multi-stage filtration systems
• Installation Orientation: Install with airflow arrow aligned to system direction
• Compliance: ASHRAE 52.2 and UL 900 Classified

Professional Summary

The Purolator Hi-E® 40 MERV 8 Pleated Air Filter provides professional contractors and facility engineers with a reliable medium-efficiency filtration solution for HVAC and air handling systems. Its hydrophobic synthetic media delivers consistent performance and structural integrity across demanding operational conditions. The reinforced beverage board frame supports stable airflow and maintains form during installation and extended service intervals. Engineered for mechanical reliability and low pressure drop, the Hi-E® 40 ensures effective particulate capture and predictable service life in commercial, industrial, and institutional air systems.