Technical Guides

Camfil Opakfil ES Equivalents: Compact V-Filter Sizes, Classes and Replacements

2026-10-30

How to read Camfil Opakfil ES types ES6 to ES9, which ISO 16890 class and size each stands for, and how our V-Cell compact filter compares.

Key points

Opakfil ES is a compact V-filter with glass-fibre media in an ABS plastic frame, 296 mm deep.
Types ES6 to ES9 run from ePM10 70% (M6) to ePM1 80% (F9), in face sizes 592 × 592, 592 × 490 and 592 × 287 mm.
Our V-Cell filter is the same construction: mini-pleat glass-fibre panels in V-banks, with an ABS or metal frame.
Our catalogue depth is 292 mm, so tell us when you need 296 mm to fit an Opakfil housing.

What Opakfil ES is

Opakfil ES is Camfil's compact V-filter for air handling units and for prefiltration ahead of cleanroom HEPA filters. Glass-fibre mini-pleat packs, held by hot-melt separators, are set in V-shapes inside a moulded ABS plastic frame. The front dimensions follow EN 15805 and the depth is 296 mm. The type code, ES6 to ES9, gives the efficiency class.

Our V-Cell filter uses the same layout: eight mini-pleat glass-fibre panels in four V-banks, in an ABS or metal frame.

Opakfil ES types and our nearest V-Cell grade

Opakfil ES types (Camfil datasheet 2025) and the nearest grade in the Yiding V-Cell catalogue
Opakfil type	EN 779	ISO 16890	Initial pressure drop at nominal airflow	Nearest Yiding V-Cell grade
ES6	M6	ePM10 70%	60 Pa	60–65% dust-spot (MERV 11)
ES7	F7	ePM1 60%	65 Pa	80–85% dust-spot (MERV 13)
ES8	F8	ePM1 70%	75 Pa	90–95% dust-spot (MERV 14)
ES9	F9	ePM1 80%	90 Pa	90–95% dust-spot (MERV 14)

Our catalogue grades are dust-spot ratings (ASHRAE 52.1) and do not convert exactly to ISO 16890. When you order against an Opakfil type, we build to its ISO 16890 class and confirm it in the test report sent with the quote.

Sizes and airflow

Opakfil ES sizes (Camfil datasheet 2025) and our V-Cell catalogue
Opakfil size W × H × D (mm)	Nominal airflow (m³/h)	Our V-Cell catalogue
592 × 592 × 296	3400	595 × 595 × 292 mm, rated 3400 m³/h
592 × 490 × 296	2800	Built to order
592 × 287 × 296	1700	289 × 595 × 292 mm, rated 1700 m³/h

Our catalogue sizes follow the US 24 × 24 in and 12 × 24 in modules. When you order against an Opakfil code, we build to its EN 15805 face size and 296 mm depth.

What to confirm before you switch

Size: 592 or 595 mm on the face, 292 or 296 mm deep. A few millimetres decide whether the filter slides into the housing rails and seals.
Frame: ABS like Opakfil, or galvanised steel, aluminium or stainless steel if you need a metal frame.
Header and gasket: tell us whether the filter seals on a front header and where the gasket sits.
Temperature: Camfil rates Opakfil ES to 70 °C. Our ABS-frame V-Cell is rated to 40 °C continuous and 60 °C maximum, so choose a metal frame for warmer air.
Final pressure drop: EN 13053 recommends changing at initial pressure drop + 100 Pa or three times the initial value, whichever is lower.

How to order

Send the Opakfil type and size from the label, or a photo of the label.
Give the quantity for each size and the design airflow, if you know it.
Tell us the frame material and gasket position you need.
We reply with a drawing, a price and our test report for the class, so you can compare before switching.

Camfil and Opakfil are trademarks of Camfil AB. Yiding is not affiliated with Camfil. Opakfil ES data on this page comes from Camfil's published datasheet (2025-01-17) and is used only to identify the size and class to be matched.

Frequently asked questions

Is the Yiding V-Cell a drop-in replacement for Opakfil ES?

It has the same V-bank construction and can be built to the same 592 mm face size and 296 mm depth, so it fits the same housings. Confirm the frame, header and gasket when you order.

Is it the same filter as Opakfil?

No. It is a different manufacturer's filter built to the same dimensions and class, with performance shown in our own test report.

Why choose a V-filter instead of a bag filter?

A V-filter is rigid and does not collapse when airflow varies or the fan stops, and it is shorter than most bag filters. A bag filter is lighter and usually costs less per unit.

Can I get a metal frame instead of ABS?

Yes. The V-Cell can be supplied with a galvanised steel, aluminium or stainless steel frame, which also suits higher operating temperatures.

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