AAF’s PREpleat HT HC filters are designed for increased air filtration efficiencies in an operating environment where temperatures reach 500°F. Typical examples include air intakes for drying ovens or high temperature baking applications.
PREpleat® HT HC
Product Overview
The PREpleat HT HC air filter features ultra-fine high loft microglass media for optimal efficiency and is engineered to deliver superior filtration in high-temperature environments. Available in 44 mm and 95 mm depths, it is ideal for applications such as air intakes for drying ovens and high-temperature baking processes.
Key Features
V-Pleat Design: Optimises airflow and reduces energy costs
Energy Efficiency: Enhanced dust holding capacity leads to extended service life
Typical Applications
• Food and Beverage
• Pharmaceutical
Superior Design and Construction
Pleat Design: V-Pleat design aids in pressure drop while reducing energy cost. Design allows for maximum airflow and dust holding capacity during the life of the filter.
Frame: 24-gauge corrosion-resistant steel.
Face Screen: Expanded metal corrosion-resistant steel.
Operating Temperature Limits: Maximum operating temperature is 500°F (204.44°C).
The PREpleat HT pleated air filter consists of a MERV 8 fiberglass filtration media that has been bonded to corrosion-resistant expanded metal backing, then pleated into either standard or high-capacity packs.
Each pack is encased within a 24-gauge corrosion-resistant metal frame with an expanded corrosion-resistant metal face screen on the downstream side to increase pack rigidity while preventing blowouts.
PREpleat HT pleated air filters are offered in two inch depths in all of the most popular face sizes. They have been tested by Underwriters Laboratories and found to meet the stringent performance characteristics of a Class 1 air filter for flammability as outlined in Standard 900.


| EN779 | G4 |
| ASHARE 52.2 | MERV 8 |
| Filter Depth (mm) | 44, 95 |
| Media Type | Fibreglass |
| Frame Material | Aluminised Steel |
| Special Size Available | Yes |
| Antimicrobial Available | No |
| Recommended Final Resistance | 300 Pa |
| Max Operating Temperature | 260ºC |
| Air Filtration Certificate | UL 900 |
