HVAC Filtration Guides
Technical articles on EN filter standards, grades, replacement intervals, and application selection for South African industry.
Air Filter Grades Explained: G4, F9, H14 and What EN779 Actually Means
A plain-language guide to HVAC air filter grades (G4, F5, F7, F9, H13, H14) and the EN779 and EN1822 standards that define them. Written for South African HVAC engineers and facilities managers.
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Baghouse Filter Guide: Cartridge Filters for Dust Collectors
Baghouse cartridge filter guide for SA industry. Pulse-jet systems, replacement intervals, cross-referencing by dimension. Call +27 74 159 1634.
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EN779 vs ISO 16890: What South African HVAC Engineers Need to Know
EN779 vs ISO 16890: key differences, crosswalk table, and why EN779 remains the standard in South African HVAC practice. Call +27 74 159 1634.
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HEPA Filter Grades Explained: H13 vs H14 and Which Do You Need?
H13 vs H14 HEPA filter grades explained. EN1822 efficiency thresholds, test certificates, and when each grade is required in SA pharma and healthcare.
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HVAC Filter Replacement Intervals for South Africa
HVAC filter replacement intervals for SA conditions. G4, F9, and HEPA schedules for Highveld dust loads. Call +27 74 159 1634.
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