MERV 8 Pleated PuraWard Antimicrobial PuraFilter


  • MERV 8 filtration captures particles from 3-10 microns while maintaining energy efficiency with low pressure drop and minimal air flow reduction
  • Protected by embedded PuraWard™ fibers, a microtechnology containing an EPA-registered antimicrobial additive, using copper and silver ions to combat many bacteria and viruses†
  • Extended pleated surface area with more media for high particulate loading applications
  • Non-woven, wire-backed filter has 15 pleats per linear foot (2” deep filter)
  • Rigid, durable filter frame constructed using a highstrength, moisture-resistant beverage board
  • Compatible with HVAC units for improved air quality in commercial, industrial and residential spaces
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MERV 8 PuraWard PuraFilter

A Better HVAC Filter

MERV 8 PuraFilters are an easy way to upgrade your HVAC filtration without the pressure drop, air flow reduction or increased energy costs of a denser MERV 13 filter (which could damage your HVAC system).

PuraWard PuraFilters go beyond just trapping particles — they’re engineered with a microtechnology you won’t find anywhere else. Threaded into their material are high-efficiency PuraWard fibers. These fibers use an EPA-registered antimicrobial additive, meaning the filter is protected from many viruses, bacteria and mold using copper and silver.†

Ideal for Use in:

  • Office & retail
  • Manufacturing & distribution
  • Government & educational facilities
  • Public transit
  • Doctor offices & hospitals
  • Assisted living facilities
  • Hotels & airports
  • Single & multi-family housing

Meet PuraWard PuraFilters

PuraFilters add powerful air filtration to your HVAC with minimal impact on air flow, helping to keep your system in good, energy-efficient condition.

PuraShield 500


  • MERV 8 filter captures 3.0 to 10.0-micron particles
  • Individual filters last 3-6 months
  • Embedded with PuraWard technology
  • Extended surface pleated area
  • Rigid, durable & moisture resistant


  • Energy efficient MERV 8
  • Good for residential, commercial or industrial use
  • Low pressure drop easier on your HVAC
  • Effective for high dirt-loading applications
  • Protected from many viruses, bacteria & mold†

PuraWard Fiber Technology

PuraWard technology goes beyond the trapping of particles and aerosols carrying viruses and bacteria. Using a microtechnology containing an EPA-registered antimicrobial additive, the PuraWard filter is protected from many viruses, bacteria, and mold using copper and silver.†

Tech Specs for the PuraWard PuraFilter

Click Here For Full Specifications

Protecting Public Transit Passengers & Employees

As the pandemic spread, Southern California sought to address public safety and keep transit on the rails. Metrolink partnered up with Purafil to help give passengers and employees peace of mind and protection. PuraWard PuraFilters were installed into the trains’ HVAC systems, improving filtration and delivering cleaner, safer air for all

Protect your space with technology trusted by Metrolink.

Brands Experiencing The Power of PuraShield®


Purafil, the leader in molecular filtration, has been making the world safer, healthier and more productive since 1969. For over 50 years, we've developed innovative products to offer protection and peace of mind to the communities we serve. Purafil technologies are trusted worldwide, protecting even the most sensitive environments. — NASA cleanrooms, the Sistine Chapel, the Smithsonian Institute and more.

Breathe easier with PuraShield. Find a distributor now.

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† Filter protected by an EPA-registered antimicrobial additive.
MERV 8 Pleated PuraWard Antimicrobial PuraFilter

MERV 8 Pleated PuraWard Antimicrobial PuraFilter