Product Data for Ventilation Technology: Performance Values, Structured

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.

Jakob Feinböck, ProductbayJuly 4, 20267 min read
☝️Key takeaways
  • Ventilation selling revolves around performance values: air volume flow (m³/h), static pressure (Pa) and sound level (dB(A)) — the specs that decide the sale.
  • The catch: those values arrive inside PDF datasheets and performance curves, formatted and unit-labelled differently by every manufacturer.
  • ETIM gives standard fans and ducts a shared classification — but not the filled values, the curves or the sales content, and it thins out for accessories and niche brands.
  • Productbay reads specs out of PDFs, normalizes units into clean attribute groups and publishes one filterable, comparable catalog.

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.

Which performance attributes actually decide the sale?

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:

  • Air volume flow (m³/h): the headline figure — how much air the unit moves. Often given at multiple operating points, not one number.
  • Static pressure (Pa): what the fan can push against duct resistance. Air flow without a pressure reference is close to meaningless for a real installation.
  • Sound level (dB(A)): frequently the deciding factor for residential and office ventilation — and reported inconsistently as sound power versus sound pressure at a distance.
  • Power consumption and efficiency: wattage, specific fan power, ErP relevance — increasingly a compliance and selling point.
  • Dimensions, connection size and control: duct diameter, mounting, and whether the unit is controllable or fixed-speed.

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.

Which standard helps — ETIM — and where does it stop?

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 layerWhat ETIM deliversWhere it stops
ClassificationProduct class + defined feature list per classDoesn't fill the values — just the empty structure
Performance valuesDefines the attribute (m³/h, Pa, dB(A))Actual figures still sit in the PDF datasheet / curve
Accessories & controlsPartial class coverageOften thin or empty for niche parts
Sales contentNot the job of a classificationDescriptions, benefit copy, SEO text absent
Images & curvesOut of scopePerformance 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.

How does Productbay structure ventilation data?

The throughline is turning inconsistent PDF datasheets into one clean, filterable performance-value catalog — and that's what Productbay is built for:

  • Consolidate: import every source once — supplier CSV, Excel, ETIM/BMEcat feed, FTP, API — and match by supplier number or EAN/GTIN so existing products update and new ones are created.
  • Read the datasheets: AI reads air volume flow, pressure, power and sound level out of PDF datasheets and maps them to consistent attributes — the values that were trapped in a curve become filterable data.
  • Normalize into attribute groups: one canonical unit per attribute (m³/h, Pa, dB(A)), so a supplier delivering m³/s and one delivering m³/h land comparable in the same column. Performance, acoustic and electrical values sit in clean, grouped attributes.
  • Enrich & publish: AI writes descriptions, fills gaps from whitelisted sources and translates via DeepL — always with a review queue — then syncs to Shopify and Shopware and exports feeds for the marketplaces.

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.

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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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