H14 HEPA Filters
Every Airtech H14 HEPA filter ships with its own serial-numbered EN1822 test certificate. The paperwork goes straight into your validation file. These are AHU and cleanroom HEPA filters, not air purifier replacements. We stock full-size and half-size formats in Pretoria for pharmaceutical cleanrooms, hospital operating theatres, compounding pharmacies, and data centres. Call Nick with your housing dimensions and he will confirm availability same day.
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The Airtech H14 HEPA filter is the final filtration stage in the air handling unit, for controlled environments where air quality is critical. Individually tested to EN1822, each unit ships with its own serial-numbered test certificate documenting tested efficiency at MPPS, not a batch sample, not an estimate. Standard sizes held in stock at our Silverton, Pretoria warehouse; non-standard dimensions available on request.
Two formats are held in stock in Silverton, Pretoria: the full-size 610×610×292mm and the half-size 305×610×292mm, both with nationwide delivery quoted at checkout on online orders. Current pricing for each is shown on the order panel above.
H13 or H14? Both grades are held in Silverton. H14 (99.995% at MPPS) is the higher grade; H13 (99.95% at MPPS) has a continuous seal around the face and costs less. Both ship with an individual serial-numbered test certificate. Read the comparison: H13 vs H14 HEPA grades, or our guide to HEPA filters in South Africa.
What Are HEPA Air Filters?
HEPA (High Efficiency Particulate Air) filters capture 99.95% or more of airborne particles: bacteria, dust, aerosols, and other contaminants that standard panel or pocket filters cannot remove. The H14 grade is the highest class in the HEPA range under the EN1822 standard, with a minimum overall efficiency of 99.995% at the most penetrating particle size (MPPS). This is the grade commonly specified for pharmaceutical GMP cleanrooms, hospital operating theatres, and sterile compounding facilities across South Africa.
HEPA air filters are always used in combination with upstream pre-filtration. G4 panel filters remove coarse dust and debris in the first stage, F9 pocket filters handle fine particulate in the secondary stage, and the H14 HEPA is the final stage. A well-maintained three-stage system is the standard approach in pharmaceutical and healthcare HVAC, and it is what stops the HEPA loading prematurely. Service life follows the application: pharmaceutical cleanrooms typically 12 to 18 months, hospital theatres 12 to 24 months, and lower-dust settings such as data centre critical zones 2 to 5 years. Our replacement intervals guide gives the full schedule by region and stage.
Why Prebur for HEPA Filter Supply
Each Airtech HEPA unit is serial-numbered and individually tested, and the certificate arrives with the filter. It goes straight into your IQ/OQ validation file with no separate request and no chasing documentation after the fact. Note: per-unit test certificates are supplied with HEPA grades (H13 and H14), not with G4, F9, or other non-HEPA filters.
Most HEPA suppliers in South Africa import to order. Prebur holds both full-size (610×610×292mm) and half-size (305×610×292mm) formats in stock in Silverton, Pretoria. The filters are on the shelf before your scheduled cleanroom shutdown, not on a ship.
Prebur has supplied filters to South African pharmaceutical manufacturers, compounding pharmacies, and hospital groups since 1989. We know what QA teams need in a validation file.
Call Nick Els on +27 74 159 1634 or email sales@prebur.co.za. Nick can confirm current stock, provide a quote, and advise on sizing and grade for any application. Same day.
Specification: H14 HEPA Filter
| Filter Class | H14 (EN1822) |
| Full Size | 610 × 610 × 292 mm (Model VH66-H14) |
| Half Size | 305 × 610 × 292 mm (Model VH36-H14) |
| Media Type | Glass fibre |
| Frame | Galvanised steel |
| Gasket | EPDM gasket |
| Overall Efficiency | H14 ≥ 99.995% at MPPS (individually tested) |
| Initial Resistance (full) | 290 Pa ±10% at 3 400 m³/h |
| Initial Resistance (half) | 300 Pa ±10% at 1 700 m³/h |
| Final Resistance | 500–600 Pa (replace at this reading) |
| Certificate | Serial-numbered EN1822 test report per unit (H13 and H14) |
| Weight (full) | 19.9 kg |
| Weight (half) | 11.0 kg |
Resistance vs Airflow: 610×610×292mm (Full Size)
| Airflow (m³/h) | 1500 | 2000 | 2500 | 3000 | 3400 | 4000 |
|---|---|---|---|---|---|---|
| Resistance (Pa) | 152 | 191 | 226 | 269 | 309 | 386 |
Resistance vs Airflow: 305×610×292mm (Half Size)
| Airflow (m³/h) | 750 | 1000 | 1250 | 1500 | 1700 | 2000 |
|---|---|---|---|---|---|---|
| Resistance (Pa) | 166 | 201 | 236 | 281 | 318 | 396 |
Available Sizes: Both H14 Grade, 292mm Deep
| Size (WxHxD) | Model | Init. Resistance | Rated Airflow | Weight |
|---|---|---|---|---|
| 610×610×292mm | VH66-H14 | 290Pa ±10% | 3400 m³/h | 19.9kg |
| 305×610×292mm | VH36-H14 | 300Pa ±10% | 1700 m³/h | 11.0kg |
All: Galvanised steel frame, glass fibre media, EPDM gasket, H14 EN1822. Individual test certificate included with each unit. Final resistance: 500–600 Pa.
H14 HEPA filters are the final stage in the air handling unit. They protect the cleanroom and any terminal HEPA filters in the room. They always sit downstream of G4 panel pre-filters and F9 pocket filters, which stop the HEPA loading too early.
The final filtration stage in the AHU for GMP manufacturing areas. H14 is commonly specified for Grade A and B cleanrooms. Individual test certificates support IQ/OQ validation documentation.
Final-stage HEPA filtration in theatre air handling units. Removes airborne bacteria, fungal spores, and fine particulate that could compromise sterile fields during procedures.
Sterile compounding suites need HEPA-grade air. H14 is commonly specified as the final stage in the AHU serving the cleanroom.
High-specification data centres use HEPA where standard F9 filtration is not sufficient for sensitive equipment protection. HEPA removes sub-micron particulate that causes long-term component degradation.
High-care zones in food manufacturing where airborne contamination risk is a product safety concern. HEPA as the final AHU stage for rooms with open product lines.
What is a HEPA air filter and what does H14 mean?
HEPA stands for High Efficiency Particulate Air. These filters capture extremely fine particles from the air: dust, bacteria, aerosols, and other contaminants that standard filters miss. H14 is the highest HEPA grade under the EN1822 standard, capturing at least 99,995% of particles at the most penetrating particle size (MPPS). Lower grades like H13 (99,95%) exist, but H14 is commonly specified for pharmaceutical manufacturing, hospital theatres, and sterile compounding.
How often should HEPA air filters be replaced?
Replace when differential pressure across the filter reaches 500–600 Pa. In pharmaceutical Grade A/B environments, typically every 12–18 months. In lower-dust environments such as data centre critical zones, 2–5 years is common. Replace based on differential pressure readings and validation requirements, not calendar time alone. Well-maintained upstream pre-filtration (G4 panels and F9 pockets) extends HEPA service life significantly.
What sizes of HEPA air filter do you stock?
We stock two standard sizes in Pretoria: full-size (610 × 610 × 292 mm) and half-size (305 × 610 × 292 mm). These fit the majority of pharmaceutical and hospital AHU housings in South Africa. Non-standard dimensions are available on request: send us the face dimensions, depth, and grade and we will confirm.
Do you deliver HEPA filters nationwide?
Yes, we deliver nationwide by courier. Delivery is charged at the live courier rate for your address, shown at checkout. HEPA filters are high-value items and are carefully packaged for safe transit. You can also collect from our Silverton, Pretoria warehouse at no charge.
Do HEPA filters come with test certificates?
Yes, on every HEPA unit we supply, H13 and H14 alike. Each Airtech HEPA filter is individually tested and ships with its own serial-numbered EN1822 test report. The report covers that specific filter rather than a batch sample, and it goes straight into your IQ/OQ validation file with no separate request needed.
How do HEPA filters work with pre-filters and secondary filters?
HEPA filters are always used as the final stage in a multi-stage filtration system. Upstream stages remove coarser particles first: G4 panel filters capture large dust and debris, F9 pocket filters remove fine particulate, and the H14 HEPA is the final stage in the air handling unit. This three-stage approach protects the expensive HEPA from premature loading and extends its service life considerably: in pharmaceutical cleanrooms it typically runs 12 to 18 months, while lower-dust settings such as data centre critical zones reach 2 to 5 years. Neglecting upstream pre-filtration is the primary cause of early HEPA failure.