Defro DRX V / OPTI V filter set M5+M5 (house brand)
Defro DRX V / OPTI V filter set 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 the following models:
- Defro DRX 300 V
- Defro DRX 400 V
- Defro DRX 500 V
- Defro DRX OPTI 300 V
- Defro DRX OPTI 400 V
- Defro DRX OPTI 500 V
- Defro DRX OPTI 250 V S
- Defro DRX OPTI 300 H
- Defro DRX OPTI 400 H
- Defro DRX OPTI 500 H
- Defro DRX OPTI 350 F
- Defro DRX OPTI 450 F
What filter set protects against
Filter set includes 2 filters:
- Extract filter – M5 (ePM10 55%) – for MVHR protection
- Supply filter – M5 (ePM10 55%) – for indoor air protection
This filter set follows the ISO 16890 standard for particle filtration efficiency.
The M5 filters capture around 55% of particles that are 10 microns or larger, such as pollen, mould spores, pet dander, and house dust. One of them filters the air extracted from your indoor space and protects the MVHR unit; while the other cleans the outdoor air supplied into your premises, improving indoor air quality and protecting your health. This helps reduce visible dust, lowers energy consumption, keeps the system running quietly, and extends its lifespan.
Usage and maintenance
Defro recommends replacing the filters every 6 months, to ensure optimal air quality and system performance.
However, replacement frequency may vary depending on factors such as:
- Air pollution levels (e.g. urban vs rural areas)
- Allergies or respiratory sensitivities
- Indoor pets or smoking
- Dust from nearby construction sites
If your system includes a filter change indicator, follow its alerts. Otherwise, check the filters visually – if they appear very dirty or clogged, it's time to replace them.
Manufacturing quality
This filter set is part of our carefully developed house brand, manufactured in the European Union by our trusted partners who meet our strict quality standards. We work closely with each production partner and perform our own quality control checks to ensure every filter delivers reliable performance and consistent quality.
These panel filters are made using Z-line technology, with densely folded filter media mounted in a cardboard frame. Such design maximises the filtration surface area, enhancing particle retention and airflow efficiency. This kind of construction offers a larger effective filtration area, more uniform airflow distribution, improved particle capture, and a lower pressure drop.
| 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 |
Filter Replacement Instructions for Defro DRX V / OPTI V:
- Turn off the unit: Ensure the unit is powered off and disconnected from the electrical supply to prevent any accidents.
- Access the filter compartment: Locate the filter compartment, accessible via the front panel.
- Remove the old filters: Carefully remove the existing filters. Note the orientation and position of the filters for proper installation of the new ones.
- Install new filters: Place the new filters into the compartment, ensuring they are correctly oriented and seated properly.
- Reassemble the unit: Replace any panels or covers that were removed during the process.
- Power on the unit: Reconnect the unit to the electrical supply and power it on.
Užsakymų apdorojimo laikas
Visos sandėlyje esančios prekės išsiunčiamos per 1-2 darbo dienas, išskyrus aiškiai pažymėtas prekes, kurioms taikomas ilgesnis išsiuntimo terminas (5–10 darbo dienų).
Pristatymo išlaidos
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Darbo dienos
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Lengvas prekių grąžinimas per 30 dienų
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Grąžinimo apdorojimo trukmė
Kai jūsų grąžinta prekė pasieks mus, jos būklę patikrinsime per 1-5 darbo dienas. Pinigų grąžinimas bus atliktas per papildomas 1-5 darbo dienas nuo patvirtinimo, naudojant prieš tai jūsų pasirinktą apmokėjimo būdą.
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