HVAC, Air Conditioning & Filters

There is no direct equivalent. In Eurovent’s indicative data an F7 filter’s ePM1 efficiency ranges from 40% to 65%, so some F7 filters do not reach the ISO ePM1 group at all. Specify the class and efficiency you actually need — for example ISO ePM1 60% — and request the ISO 16890 test report.

Under EN 13053 and Eurovent 6/18 the operating rule is clean pressure drop + 100 Pa, or 3 × clean pressure drop, whichever is lower (+50 Pa for coarse filters). The 450 Pa figure often quoted is the end point of the EN 779:2012 laboratory loading test and running to it multiplies fan energy.

From the frame dimensions (width × height × depth in millimetres), the efficiency class and the frame type. Photograph the label on the existing filter and measure the frame if the label is unreadable — that is enough in almost every case. Non-standard sizes are common in older units and are made to order, which adds lead time, so measure before the filter is due rather than after.

By differential pressure where it is measured, and by a calendar interval where it is not. A common planning interval is 3–6 months for pre-filters and 6–12 months for bag and compact filters, shortened sharply in dusty or high-pollen environments. A clogged filter raises fan energy consumption continuously, so the change interval is an energy decision as much as an air quality one.

We supply the units, filters, refrigerant and consumables. Installation, commissioning and periodic maintenance are outside our scope; within İstanbul, installation can be arranged on request as a separate line in the quote.

Yes. We deliver across all 81 provinces of Türkiye and arrange export shipments abroad. On export orders the delivery term is agreed at quotation stage under Incoterms 2020 — EXW, FCA, CPT or DAP — and the quote states which party arranges and pays for carriage, and where our responsibility ends. Country of origin, HS code and any conformity documents needed for export are settled at the same stage.

It includes the goods, export packing where required, and carriage up to the point defined by the agreed Incoterm. It does not include destination-country duties, taxes or customs charges — those sit with the buyer. Cargo insurance is not automatic under EXW, FCA, CPT or DAP; if you want it arranged, say so in the request and it appears as a separate line. Turkish VAT is zero-rated on exports once export clearance is completed.

There is no fixed minimum, but freight economics set a practical floor: on a low-value single-line order, carriage can exceed the value of the goods. Consolidating several categories into one shipment is usually what makes an export order worth placing — which is the same reason our buyers consolidate domestically. Tell us the delivery country and we will say honestly whether the freight makes sense before you spend time on a specification.

These three questions are the same on every category and industry page. The full answer — Incoterms, the document set and ISPM 15 packing — is in our export shipping guide.