Domekt R 400 H C6 F7 Original filter

Reference: 774300004

£23.91

delivery in 5-7 working days

Ex VAT: £19.92

Filter dimensions	410x200x46
Class EN779	F7
Class ISO16890	ePM1 55%
Protection level	High: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters	1
Advantages	Airtight: Pollutants will not pass through a filtering material and a frame connection. Genuine (original) filter. Made in the EU. Premium class certified synthetic filtering material (SANDLER AG, Germany)
Remarks	Not suitable for C6M model (from 10/2020). Please check model or filter dimensions before ordering.

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Reference 774300004

Data sheet

Manufacturer of MVHR: Komfovent
Manufacturer: Original
Model: Domekt R
Domekt REGO
Model size: 400
Air handling unit: Domekt R 400 H (Rego 400 HE)
Filter dimensions: 410x200x46
Class EN779: F7
Class ISO16890: ePM1 55%
Protection level: High: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters: 1
Advantages: Airtight: Pollutants will not pass through a filtering material and a frame connection.
Genuine (original) filter.
Made in the EU.
Premium class certified synthetic filtering material (SANDLER AG, Germany)
Manufacturer product number: 774300004
774300004
Remarks: Not suitable for C6M model (from 10/2020). Please check model or filter dimensions before ordering.
Google category ID: 3573
Product type: Filters for Air Handling Units

Genuine (original) F7 class filter. Classification according to ISO 16890: ePM1 55%. Only for supply air filtration.

F7 class filters are designed to filtrate fine particles, like solid smog particles, thus ensuring the high quality of indoor air even in heavily polluted areas.

Pressure drops in F7 class filters are higher than in M5 or G4 class filters, therefore it is required to change them more frequently and energy consumption might be higher.

This filter set is best suited in areas with heavy pollution: intensive traffic zones, city centers, industrial zones, and districts with solid fuel heating.

The filtering efficiency of the F7 filter:

Coarse particles: >99% (dust, pollen)
PM10 particles: >90% (mold spores, animal dander)
PM2.5 particles: >70% (combustion particles)
PM1 particles: >55% (solid smog particles, virus carriers)

Filter construction:

Type: MPL (deep pleat). Extra-large filtration surface.
Filtering material: premium synthetic fiber.
Moisture-resistant cardboard or synthetic frame (depends on filter). Operates even at 100% RH. Opposite to metal or plastic frames, such filters adapt to the construction of filter holders. Thus, ensuring airtightness and not damaging AHU's construction.
Filtering material corresponds to hygienic requirements (resistant to microorganisms' growth).

Advantages with other filters

Moisture-resistant frame, which works at 100% relative humidity. Designed to wet European climate.
Airtight construction. Material is firmly glued to the frame. Hazardous particles do pass through the frame and material connection.
Adapts to the construction of the equipment. As in the original filters synthetic or cardboard frame adapts to ventilation unit construction and does not damage it (especially EPP casing).
Filters made in the EU and tested according to ISO16890. Cheap filters from China mostly are not tested and only theoretical filtering efficiencies are being provided.
Filters are made from premium synthetic material. Unlike glass fiber, it is safe and not fragile.

Replacement period: The replacement period depends on outdoor air contamination. Expected service term: 5-6 months. Do not wash or clean. Single-use only.

Additional information:

Packing: Filters are packed in plastic film suitable for long-term storage.
Warranty: 2-year storage warranty if kept in proper condition and package.
Storage conditions: internal premises, RH<60%, low dustiness.
Made in the EU.

For an extra discount for higher quantities of filters please contact us directly.

✅ Filter Maintenance Recommendations

⏳ When to Replace Filters?

Filter contamination is monitored by a timer in the control unit. Replacement alerts appear on the display or in the mobile app.
⚠️ A filter alert is just a reminder — your AHU will continue operating normally.
The replacement frequency depends on outdoor air quality. If you live near busy roads, gravel paths, construction sites, industrial zones, or farmland, you may need to replace filters 1.5–2× more often.
Most manufacturers recommend replacing filters at least twice a year: before and after the heating season.

⚙️ Recommended Filter Replacement Intervals:

Filter Type	Suggested Replacement
Activated carbon (F7-AC)	every 3 months
F7–F9	every 4–6 months
M5 / G4	every 5–8 months

Using a G4 prefilter can extend F7–F9 filter lifespan by 2–3 months.

Return air filters (extract side) may be replaced less frequently than supply air filters (F7, F7/AC).

♻️ Reusable Filter Types

Wire-frame filters and filter media pads (cut-to-size materials) can be vacuumed every 2–3 months, up to 2–3 times before replacement — if permitted in your unit's manual.
However, panel and pocket filters are strictly single-use. Vacuuming or washing them may damage the filter and reduce efficiency. Fine dust gets trapped in the inner layers and cannot be removed.

⚙️ Step-by-Step Filter Replacement

Check your user manual if replacing filters for the first time.
Turn off the AHU and wait until all fans stop rotating.
Remove the front panel or filter cover.
Take out the old filters.
Vacuum inside the unit if possible and wipe down filter holders with a damp cloth.
Inspect and clean other AHU components if needed — such as rotor belt, heat exchanger, fan blades, etc.
Install new filters carefully:
- Check airflow direction — arrows on the filters must match the AHU’s airflow.
- Typically, filters are installed before the heat exchanger; arrows should point inward toward the center.
- If there are 3 filters and the F7/F8 filter is on the opposite side of the exchanger from G4, its arrow must point away from the exchanger.
- Incorrect orientation can increase airflow resistance by up to 15%.
If using different filter types (e.g. F7 and G4), install F7 on the outdoor air side and G4 on the extract side. The outdoor air duct is usually insulated; the extract duct is not. Refer to the manual and note whether your unit is left- or right-handed.
After installation, close the cover and restart the unit.
Reset the filter timer using the control device, according to the user manual.

❌ Do Not Use the Unit Without Filters

Running your ventilation unit without filters will clog the heat exchanger and contaminate the entire system. It will also void your warranty.

⏳ Why Timely Filter Replacement Matters

Dirty filters increase airflow resistance, reduce airflow, raise energy consumption, and increase operating noise. Replacing them on time ensures efficiency and extends system life.

✅ Why choose us?

⚙️ Advantage	⚙️ Description
✅ Experience & support	Our consultants have extensive experience in HVAC manufacturing and service.
✅ Wide selection	We offer a variety of filter types – including activated carbon and energy-efficient options – for most AHUs.
✅ Fast delivery	With 40,000+ filters in stock, we ship on the same or next business day.
✅ Premium materials	Filtering media from SANDLER AG (Germany) offers high dust-holding capacity and performance.
✅ Sealed for quality	All filters, including G4 class, are tightly sealed to prevent air leaks.
✅ Competitive prices	Thanks to our direct factory supply and large volumes, we offer some of the best filter prices in the EU.
⚙️ EU-made	Most filters sold in Europe are made in China using low-grade materials. Ours are produced in the EU.
⏳ Certified performance	Efficiency tested according to ISO 16890 in an accredited German laboratory.

Warehouse with filters

Filter is a replaceable component of any ventilation equipment, therefore sustainable production and logistics play a key role.

♻️ Production:

✔️ Benefit	Description
✨ High-quality materials	3-ply filtering material with larger dust-holding capacity means longer filter life and less material usage.
❌ No glass fiber	We avoid fragile, potentially hazardous, and non-recyclable glass fiber materials.
♻️ Recycled cardboard frames	Panel filter frames are made from moisture-resistant cardboard with maximum recycled content.
✔️ Renewable energy	Production plants run on renewable energy sources.
✔️ Eco plastic frames	Zehnder ComfoAir filter frames contain over 80% organic material.
⚙️ Energy-efficient options	We offer energy-efficient filters lasting 1.3-2 times longer than traditional ones.
✨ Less glue usage	Patented technology reduces glue consumption by 30-50% compared to other filters.

⏳ Shorter delivery distance:

Materials sourced from manufacturers in EU countries.
Filters made in the EU (while over 80% of market filters come from China or other Asian countries).
Direct delivery from production warehouses.

We are constantly searching for ways to provide more sustainability to your filter!

⚠️ PFAS chemicals have been used in a wide range of products since the 1940s. During production or use, PFAS can migrate into soil, water, and air. Most of these chemicals are practically non-degradable. Numerous scientific studies indicate that PFAS chemicals may pose risks to human and animal health.

♻️ Major Health Risks:

✔️ Risk	✨ Description
✅ Heart Disease	PFAS may increase the risk of heart-related illnesses.
✅ Reproductive Disorders	Can affect hormone systems, causing infertility and other reproductive issues.
✅ Neurological Effects	Linked to brain development disorders and cognitive impairments in children.
✅ Increased Cancer Risk	Evidence suggests PFAS may raise the risk of certain cancers.

♻️ Main Products Containing PFAS:

♻️ CleanFilter Solution

✔️ Healthier indoor air. PFAS chemicals do not enter the air or spread throughout your rooms.
✔️ Complies with the latest standards. Our filters meet current safety requirements and forthcoming regulations regarding PFAS materials.
✔️ Excellent performance. The synthetic filtering material offers durability and high efficiency without harmful additives.
✔️ Environmental protection. Choosing PFAS-free filters helps reduce pollution and protect public health.