VTS Ventus VS 21 filter set M5+M5+M5+M5 (house brand)
VTS Ventus VS 21 filter set M5+M5+M5+M5 (house brand)
Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
General dust and particle filtration
Captures pollen, mold spores, and other allergens
Key features of this product
Certified quality to international ISO standards
Manufactured entirely within the European Union
Effective filtration for up to 6 months.
Price for set
Model compatibility
Compatible with:
- VTS Ventus VS 21
The set contains four filters of the same size: two extract-air filters and two supply-air filters. It is a compatible replacement for VTS Ventus VS 21 units built with bag-filter frames in both the extract and the supply air stream. Ventus VS 21 is a unit size, not one fixed configuration, so this set does not fit every VS 21 unit: before ordering, compare the unit's Technical Data Card, the filter-section arrangement, the frame dimensions, the pocket length and the original filtration requirements. The all-M5 configuration of this set is not claimed to be the original factory configuration of every VS 21 unit.
What the filter set protects against
Filters are listed in extract → supply order:
- 2 x M5 extract-air filter: ePM10 55%, reduces dust and other airborne particles entering the unit from the indoor air
- 2 x M5 supply-air filter: ePM10 55%, reduces dust, pollen and mould spores in the incoming outdoor air
M5 is a former EN 779 class. These particulate filters do not remove gases or odours.
Use and maintenance
Switch off and isolate the ventilation unit before replacing the filters. Install two filters in each air section, observe the airflow markings and check the seal around the frame and the clearance for the pockets. Follow the unit's filter alarm and the permitted final pressure drop.
VTS gives an approximate replacement interval of twice a year under standard conditions; inspect the filters more often in dusty conditions. A typical replacement interval is 3–6 months, depending on use and contamination. Do not wash these disposable bag filters. Separate prefilters or additional filtration stages are not part of this set.
Manufacturing quality
Our house-brand filters are manufactured by AORA, a reputable and well-known filter manufacturer. This set consists of bag filters with four pockets per filter and metal frames. It is a compatible house-brand replacement, not an original VTS filter set.
Original product codes
- VTS 1-2-0303-0074: original individual M5 bag filter.
- AORA AORS0000184: this compatible four-filter set.
The VTS code identifies the original individual filter, not a packaged set or this AORA set.
| Filter Type / EN 779 Class | ISO 16890 Class | Efficiency (%): Coarse (>10 µm) | PM10 (≤10 µm) | PM2.5 (≤2.5 µm) | PM1 (≤1 µm) | Gas/VOC Removal | Real-Life Particle & Pollutant Examples |
|---|---|---|---|---|---|---|---|
| G1 | ISO Coarse | ~40% | <10% | ~0% | ~0% | Sand, textile fibers, carpet fluff, plant debris, insect wings, visible lint | |
| G2 | ISO Coarse | ~50% | <15% | ~0% | ~0% | Sawdust, hair, coarse textile particles, large flakes of paint or rust | |
| G3 | ISO Coarse | ~60% | <25% | ~5% | ~0% | Coarse dust, lint, animal hair, some pollen | |
| G4 | ISO Coarse | 65-75% | 25-35% | 10-15% | <5% | Large pollen grains, soil particles, textile lint | |
| M5 | ISO ePM10 ≥50% | ~80% | 50–65% | 20–30% | 10–15% | Pollen, mold spores, pet dander, house dust | |
| M6 | ISO ePM10 (60–80%) | ~90% | 65–80% | 30–45% | 15–25% | Building/construction dust, concrete dust, ash particles, fine cement dust | |
| F7 | ISO ePM2.5 (50–65%) | >90% | 75–90% | 50–65% | 30–45% | Bacteria, smog, tobacco smoke particles, combustion dust, spores, wildfire smoke particles | |
| F8 | ISO ePM2.5 (65–80%) | >95% | 85–95% | 65–80% | 45–60% | Fungal spores, air pollution aerosols | |
| F9 | ISO ePM1 (80–95%) | >95% | >95% | >90% | 80-95% | Diesel soot, airborne viruses, smoke from traffic and industry, combustion particles, ultra-fine dust, secondary organic aerosols from chemical reactions in air | |
| Activated Carbon | Not classified (gas filter) | Varies (combined with prefilter) | Varies | Varies | Varies |
High Efficiency |
Volatile Organic Compounds (VOCs), formaldehyde, ozone, nitrogen dioxide (NO₂), sulfur dioxide (SO₂), benzene, toluene, cooking odors, cigarette smoke odors, pet smells, perfumes |
Shipping and delivery
We process your order as quickly as possible. Dispatch time depends on the availability of your filters.
When is your order dispatched?
- In stock: dispatched within 24–48 hours.
- Not in stock: dispatched within 5–15 business days.
If a product page states a different dispatch time, that time applies.
Delivery times with DPD
After dispatch, DPD delivers your parcel to your door or to a DPD Pickup point of your choice:
| Country | Delivery time |
|---|---|
| Belgium | 2–4 business days |
| Netherlands | 2–4 business days |
| France | 2–4 business days |
| Luxembourg | 2–4 business days |
Delivery time starts once your order has been dispatched and comes on top of the dispatch time.
Shipping costs
Free shipping on orders from €100. For smaller orders, shipping costs are shown at checkout based on your delivery address.
Track your order
Once your order has been dispatched, you receive a shipping confirmation with tracking details, so you can follow your parcel easily.
Easy returns within 30 days
You can return your order within 30 days of receipt for a full refund, provided the products meet our return conditions.
Unpacked products are also accepted, as long as they are unused, undamaged and in good condition. Damaged, dirty or unusable products cannot be returned.
Want to return something after 30 days? Contact us. We review each request individually and are happy to help.
How to return a product
Please contact us before returning anything. We will send you the return instructions and guide you through the rest of the process.
Filter Direct pays the return shipping costs.
Received a wrong or damaged product?
Received a wrong or defective product? Contact us as soon as possible and we will help you resolve it.
Refunds
Once we receive your return, we check the condition of the products within 5 business days.
Once the return is approved, we process the refund within 5 business days to your original payment method.
Cancelling an order
You can cancel your order as long as it has not been dispatched. Refunds for cancelled orders are processed within 5 business days.
Business days
Dispatch and delivery times are calculated in business days, Monday to Friday, excluding public holidays.
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