Air volume flow, pressure, sound level — ventilation lives or dies on performance values. Where ETIM helps, why PDF datasheets are the real bottleneck, and how to get every spec into a clean attribute group.
In ventilation technology, the sale is won or lost on numbers. A customer choosing a fan is not comparing marketing copy — they are comparing air volume flow at a given static pressure, and how loud the unit gets while it delivers it. If those numbers aren't on your product page, cleanly and comparably, the sale walks to the competitor whose page has them.
Product data for ventilation technology is a performance-value problem: air volume flow (m³/h), static pressure (Pa) and sound level (dB(A)) decide the purchase. That is the whole challenge of this article — those decisive values almost never arrive as clean, structured data. This is a focused slice of the broader plumbing & heating (HVAC) data challenge.
Ventilation products are defined by a small set of technical values that a buyer genuinely filters and compares on. Get these into clean, comparable attributes and most of the job is done:
The problem isn't knowing which attributes matter — every ventilation retailer knows. The problem is that these values arrive in a dozen formats, units and layouts, and turning them into one comparable set is manual work that doesn't scale.
Ventilation and HVAC do have a connecting classification: ETIM, the standard used across electrical and building-services wholesale, with defined product classes and technical features for fans, ducts and air handling. For standard products, ETIM gives the industry a shared language — a fan is classified, its feature list is defined, and units are specified. That's real value. But it's important to be honest about where the classification ends and the datasheet begins:
| Data layer | What ETIM delivers | Where it stops |
|---|---|---|
| Classification | Product class + defined feature list per class | Doesn't fill the values — just the empty structure |
| Performance values | Defines the attribute (m³/h, Pa, dB(A)) | Actual figures still sit in the PDF datasheet / curve |
| Accessories & controls | Partial class coverage | Often thin or empty for niche parts |
| Sales content | Not the job of a classification | Descriptions, benefit copy, SEO text absent |
| Images & curves | Out of scope | Performance curves and photos come separately |
In short: ETIM gives you a clean skeleton for standard ventilation products — the classes and the attribute definitions. What it doesn't give you is the filled values, the performance curves, the sales content, or much for accessories and smaller brands. And the filled values are exactly what the customer is comparing.
The throughline is turning inconsistent PDF datasheets into one clean, filterable performance-value catalog — and that's what Productbay is built for:
Crucially, Productbay starts where ETIM ends: it takes the classified skeleton and fills it with the real, normalized performance values from the datasheets, plus the sales content no standard provides. Built for specialist retailers running multi-supplier, multi-channel catalogs. For the full picture across sanitary, heating and climate, see the plumbing & heating overview.
Air volume flow, pressure, sound level — locked in PDF datasheets and inconsistent supplier sheets. See in 30 minutes how Productbay reads those values out, normalizes the units and turns them into one filterable, comparable catalog.
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