HVAC Filter

Overview

HVAC Filter is the standard primary pre-filter for air handling units, fresh air supply and return air ventilation systems, designed per ISO 16890 general ventilation filter standards with G3 and G4 coarse efficiency grades. It adopts gradient-density chemical fiber non-woven media, with a fluffy layered fiber structure that provides high dust holding capacity and low initial airflow resistance. This pleated panel filter is built to capture large contaminants including lint, hair, textile fibers, coarse sand and oversized debris before air enters downstream filtration stages. By intercepting heavy coarse dust at the first stage, it protects medium and high efficiency filters, evaporator coils and internal fan components inside air conditioning equipment, greatly extending the service life of backend filters and reducing the frequency of system maintenance and downtime.

We supply two frame variants to match different operating budgets and maintenance workflows. The aluminum frame version is washable, durable and reusable; it supports automatic filter material replacement without replacing the whole frame, which is ideal for facilities with continuous 24/7 ventilation operation to cut long-term operational expenditure. The paper frame variant is fully disposable, lightweight and ready for quick drop-in replacement. It features low upfront cost and no cleaning requirement, perfect for low-budget projects, temporary workshops and sites where regular filter replacement is preferred. The internal support grid reinforces the pleated media, preventing fiber collapse under airflow pressure and maintaining stable filtration performance over its service cycle. This filter delivers consistent airflow, low pressure rise and stable dust loading performance, making it one of the most cost-effective pre-filter solutions for general HVAC applications.

Specifications

FAQ

Q1: What standard and efficiency grade does this HVAC Filter follow? 

A1: This HVAC Filter is classified under ISO 16890 coarse filter standard, available in G3 and G4 grades, the mainstream pre-filter efficiency for air conditioning and ventilation primary filtration. G4 is the more popular option for heavy dust environments.

Q2: What is the difference between aluminum frame and paper frame HVAC Filter? 

A2: The aluminum frame can be rinsed repeatedly and allows separate filter media replacement, suitable for long-cycle, high-running ventilation systems. The paper frame is disposable, simple to install and replace with lower procurement cost, no cleaning needed after saturation.

Q3: What are the core advantages of the synthetic fiber media used on this HVAC Filter? 

A3: The gradient chemical fiber material has high dust holding capacity, low initial resistance, good elasticity and less fiber shedding. It resists rapid clogging and keeps airflow stable, which helps reduce blower energy consumption during operation.

Q4: Where is the HVAC Filter widely applied? 

A4: It is commonly installed in air conditioning ventilation systems, factory fresh air units, spray booths, commercial buildings, subway stations, airports, hospital air supply systems and clean room pre-filtration sections.

Q5: Can you provide custom sizes of the HVAC Filter? A5: Yes. Beyond the standard sizes listed above, we can custom-make dimensions to fit non-standard AHU cabinets, ventilation housings and local equipment filters, with G3 or G4 efficiency options as requested.