Air Filters - Refrigeration and HVAC

Air filters used in marine refrigeration and HVAC systems remove dust, salt particles, fibers and other airborne contaminants from supply, return and recirculated air. They are commonly supplied as flat-panel, pleated, bag, metal-mesh or HEPA filters.

ProShipWorks provides end-to-end support to source and supply Air Filters for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

Last updated: October 11, 2026

Product Information

Product Name	Air Filters
Product Category	Refrigeration and HVAC
Product Reference	1443
Brands / Manufacturers	Camfil, AAF International, Freudenberg Filtration Technologies
Unit of Measure	Piece

Key Features

Key Feature
1. Pleated synthetic, fiberglass, metal-mesh or activated-carbon media
2. Designed for ventilation, air-conditioning and refrigeration air-handling units
3. Available in coarse, ePM-rated, MERV-rated and HEPA grades
4. Galvanized steel, aluminum, stainless-steel or plastic frames
5. Marine-suitable options with corrosion-resistant construction

Applications of Air Filters

Application
1. Marine HVAC air-handling units and fan-coil units
2. Engine-room, accommodation and control-room ventilation
3. Refrigeration plant and provision-room air circulation systems

Models & Manufacturers

Model	Manufacturer
Hi-Flo XLT	Camfil
VariCel V	AAF International
Viledon Compact	Freudenberg Filtration Technologies

Technical Specifications

Model	Specification	Value	Unit
Hi-Flo XLT	Filter type	Bag filter	—
Hi-Flo XLT	Efficiency classification	ePM1 or ePM2.5; grade depends on configuration	—
VariCel V	Filter type	Pleated panel filter	—
VariCel V	Efficiency classification	MERV rating varies by configuration	—
Viledon Compact	Filter type	Compact pleated filter	—
Viledon Compact	Efficiency classification	Coarse, ePM10, ePM2.5 or ePM1 depending on configuration	—

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification	Commonly specified to ISO 16890 for general HVAC filters. HEPA filters may be classified to EN 1822 or ISO 29463. ASHRAE 52.2 MERV ratings are also used, particularly for North American equipment. Exact compliance depends on the filter design and manufacturer documentation.
Class Approval	Individual replacement air filters are generally not separately type-approved by DNV, ABS, Lloyd's Register, BV or ClassNK. Marine HVAC systems may require class approval, fire performance documentation or material certificates depending on vessel rules and installation location.

Installation, Maintenance & Safety Information

Installation Notes	Verify dimensions, airflow direction, filter grade, pressure-drop limit, gasket arrangement and frame material against the HVAC or refrigeration unit manual. Install with the airflow arrow pointing in the correct direction and ensure the filter seats evenly without bypass gaps.
Maintenance Tips	Inspect filters at scheduled intervals and record differential pressure where gauges or sensors are fitted. Replace disposable filters when dirty or when the manufacturer's final pressure-drop limit is reached. Clean reusable metal filters using approved methods and dry them completely before refitting.
Safety Notes	Isolate the fan, air-handling unit or refrigeration equipment before opening the filter section. Use appropriate respiratory and eye protection when handling contaminated filters. Dispose of used filters according to onboard waste procedures and do not operate the system without the required filter installed.