Donaldson Torit Panel Filters

Use the right panel filter for your application

​​Panel FiltersOur panel filters are made with lightweight, sturdy aluminium frame & High-density Urethane Gaskets with interlocking dovetail corners for a reliable seal.  They  contain superior filter media, and come with built-in handles for easier maintenance. Airflows range from 500 to 2300 cfm. (849-3907 cubic meters /hour)
HEPA panel filters have a 99.97% or higher filtration efficiency on 0.3 micron particles.
95% DOP filters have a 95% or higher filtration efficiency on 0.3 micron particles

Thermo-Web Cartridge

Themo-Web Cartridges are good for metallurgical, chemical, and industrial applications. The Nanofiber technology ensures longer filter life at a significantly lower pressure drop. They are specially designed for dry, high temperature applications and have exceptional filtration at temperatures up to 275°F (135°C) with very good chemical tolerance.

Ultra Cylindrical HEPA Filters

Ultra Cylindrical HEPA Filters feature a helically wound filter “pack” encased in a stainless steel frame with a flange at one end to fit inside the bolt circle of a duct flange. The filter media pack comes closed on all sides with a solid resin sealant and forms a completely leak-proof seal with frame. The design eliminates square-to-round adapters. 

Energy Savings, Longer Life, Higher Efficiency 

Donaldson Torit replacement cartridge filters deliver longer filter life, higher efficiency and energy savings resulting in lower operating costs. AST Canada has more than 90,000 replacement filters for all collectors in stock and ready to ship in 24 hours,

Product Literature

HEPA & 95% DOP Panel Filters Brochure

Ultra Cylindrical HEPA Filters Datasheet

Thermo-Web™ Cartridge Datasheet

HEPA and 95% DOP panel filters dramatically improve the quality of air, but each are designed to meet different application requirements. Here are some guidelines to help you select which panel filter will best meet your needs.

​​HEPA Panel Filters

​95% Panel Filters

​Higher filtration efficiency: 99.97% on 0.3 micron particles (emits three-0.3 micron particles per 10,000 particles)

​95% on 0.3 micron particles (emits 500-0.3 micron particles per 10,000 particles

​Exhaust airstream is near breathing zone

​Heavy loading applications

​Lighter loading applications

​Exhaust airstream is not near breathing zone

​Visible emissions are unacceptable

​Customer specified 95% DOP level filtration

​Customer specified HEPA level filtration

In heavy smoke applications, a combination of 95% DOP and HEPA panel filters may be the best solution. 95% DOP filters last 3-5 times longer and have greater holding capacity in oil loading applications.




High density urethane gaskets

Interlocking and sealed dovetail corners

Single gasket design allows the filter to be installed with the gasket either upstream or downstream depending on application

Built-In Handles

For easier maintenance

Lightweight Aluminum

Panel FiltersProvides built-in corrosion resistance

Resists swelling in moist conditions

Less weight than wood board, galvanized, or stainless steel frames

Expanded Metal Liners

Reinforced squareness and rigidity in frame construction

Protects filter media from damage

Proven Separator Pack Design

Creates uniform flow channels

Every pleat has positive separation

Filter Media

Our HEPA and 95% DOP medias both outperform the leading competitors

Proprietary, premium materials

Non-glass fiber content provides greater media strength

Enhanced oil loading capabilities in both HEPA and 95% DOP

Urethane Potting Compound

Media pack is securely attached to the frame interior