Replaceable HEPA Filter Kit for Commercial Air Systems and HVAC Units

Replacement Parts & Accessories
Replaceable HEPA Filter Kit for Commercial Air Systems and HVAC Units

The Replaceable HEPA Filter Kit is engineered for seamless integration into commercial air handling units and HVAC systems across industrial, medical, and laboratory environments. Constructed with a high-density glass fiber media pleated to 18-24 folds, it captures 99.97% of particles down to 0.3 microns under ASHRAE 52.2 standards. This ensures consistent indoor air quality by removing airborne contaminants such as dust, mold spores, bacteria, and fine particulates that compromise both equipment performance and occupant health. Designed for long-term reliability, the filter features a rigid aluminum frame with a corrosion-resistant coating and a sealed gasket system to prevent bypass leakage. Its modular construction allows quick replacement without tooling, reducing downtime during routine maintenance cycles. With a service life of up to 12 months under normal load conditions, this kit delivers predictable performance in high-demand settings where air purity directly impacts operational compliance and safety.

Main Specifications

Filter Efficiency99.97% @ 0.3 µm (HEPA H13 standard)
Airflow Capacity600–1200 CFM (depending on unit model)
Filter MediaFine glass fiber, 18–24 pleats per inch
Frame MaterialAnodized aluminum with anti-corrosion coating
Sealing TypeEPDM rubber gasket with compression fit
Maximum Operating Temperature40°C (104°F) continuous
Pressure Drop (Clean)150–200 Pa at 600 CFM
Filter Dimensions600 x 600 x 150 mm (L x W x H) standard size
Service LifeUp to 12 months under average usage
Bypass Leakage Rate<0.1% when properly installed

Core Advantages

  • Maintains ISO Class 5 air quality in cleanrooms and laboratories with consistent particle capture
  • Low initial pressure drop reduces HVAC energy consumption and extends fan motor lifespan
  • Tool-free replacement design minimizes maintenance time and labor costs during scheduled servicing
  • Rigid aluminum frame resists warping under humid or high-load conditions, preventing seal failure
  • Complies with ASHRAE 52.2 and EN 1822 standards for commercial-grade filtration performance

Typical Application Scenarios

  • Hospital operating theaters and isolation rooms requiring sterile air environments
  • Pharmaceutical manufacturing cleanrooms with strict particulate control needs
  • Food processing facilities where allergen and microbial contamination must be minimized
  • Data centers and server rooms to protect sensitive electronic equipment from airborne debris
  • Commercial HVAC systems in office buildings with occupants sensitive to airborne irritants

Buying Tips for Importers

  • Verify exact dimensions and airflow rating match your HVAC unit’s original equipment specifications—over-sizing can increase static pressure and reduce system efficiency
  • Ensure the gasket material (EPDM) is compatible with ambient humidity levels; silicone-based seals may degrade faster in high-moisture zones
  • Avoid using filters rated below H13 if your application requires ISO Class 5 cleanliness—lower grades allow higher particle penetration
  • Confirm the filter’s maximum temperature tolerance aligns with peak operating conditions in ductwork near heat sources or exhaust systems
  • Always inspect the filter frame for dents or warping upon delivery—damaged frames compromise seal integrity and cause bypass leakage

Frequently Asked Questions

How does filter pleat density affect performance in high-airflow commercial systems?
Higher pleat density (18–24 folds per inch) increases surface area for particle capture without increasing pressure drop. In high-airflow systems, this maintains filtration efficiency while minimizing strain on fans, preventing premature motor wear and reducing energy use over time.
Can this HEPA filter be used in systems with intermittent operation or variable speed fans?
Yes—its low-pressure-drop design supports variable airflow without compromising efficiency. However, prolonged periods at very low flow rates may lead to moisture accumulation in the media, so regular inspection is advised to prevent microbial growth.
What happens if the gasket seal fails due to improper installation?
A compromised seal creates bypass leakage, allowing unfiltered air to enter the system. This reduces overall filtration effectiveness by up to 30%, potentially violating cleanroom certification standards and increasing risk of contamination in sensitive environments.
Why is the anodized aluminum frame preferred over plastic or steel frames?
Anodized aluminum offers superior resistance to corrosion, warping, and mechanical stress compared to plastic or galvanized steel. It maintains dimensional stability under varying temperatures and humidity, ensuring a tight seal throughout the filter's service life.
$ / piece
MOQ: - piece
Factory-direct pricing, OEM/ODM available.