{"id":2850,"date":"2025-04-07T09:42:27","date_gmt":"2025-04-07T06:42:27","guid":{"rendered":"https:\/\/uk-dev.filtrupasaulis.lt\/?post_type=product&#038;p=2850"},"modified":"2026-10-28T14:40:40","modified_gmt":"2026-10-28T12:40:40","slug":"defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48","status":"publish","type":"product","link":"https:\/\/filtriturg.ee\/en\/product\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\/","title":{"rendered":"Defro DRX V \/ OPTI V filter set M5+M5 (original)"},"content":{"rendered":"<h2>Model compatibility<\/h2>\n<p>Compatible with the following models:<\/p>\n<ul>\n<li>Defro DRX 300 V<\/li>\n<li>Defro DRX 400 V<\/li>\n<li>Defro DRX 500 V<\/li>\n<li>Defro DRX OPTI 300 V<\/li>\n<li>Defro DRX OPTI 400 V<\/li>\n<li>Defro DRX OPTI 500 V<\/li>\n<li>Defro DRX OPTI 250 V S<\/li>\n<li>Defro DRX OPTI 300 H<\/li>\n<li>Defro DRX OPTI 400 H<\/li>\n<li>Defro DRX OPTI 500 H<\/li>\n<li>Defro DRX OPTI 350 F<\/li>\n<li>Defro DRX OPTI 450 F<\/li>\n<\/ul>\n<p>In Estonia, every building with a building permit issued since 1 January 2020 must be a nearly zero-energy building (energy class A), so almost every new house has an MVHR unit \u2013 and its filters need replacing regularly.<\/p>\n<h2>What this filter set protects against<\/h2>\n<p>The filter set includes <b>2 filters<\/b>:<\/p>\n<ul>\n<li>Extract filter \u2013 M5 (ePM10 55%) \u2013 for MVHR protection<\/li>\n<li>Supply filter \u2013 M5 (ePM10 55%) \u2013 for indoor air protection<\/li>\n<\/ul>\n<p>This filter set follows the ISO 16890 standard for particle filtration efficiency. The <b>M5 filters<\/b> capture around 55% of particles up to 10 microns in size, 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 home, 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.<\/p>\n<h2>Usage and maintenance<\/h2>\n<p>Defro recommends replacing the <b>filters every 6 months<\/b> to ensure optimal air quality and system performance. However, replacement frequency may vary depending on factors such as:<\/p>\n<ul>\n<li><b>Air pollution levels<\/b> (e.g. urban vs rural areas)<\/li>\n<li><b>Allergies or respiratory sensitivities<\/b><\/li>\n<li><b>Indoor pets or smoking<\/b><\/li>\n<li><b>Dust from nearby construction sites<\/b><\/li>\n<\/ul>\n<p>If your system includes a <b>filter change indicator<\/b>, follow its alerts. Otherwise, check the filters visually \u2013 if they appear very dirty or clogged, it&#8217;s time to replace them.<\/p>\n<p>A handy rule of thumb in Estonia: always replace the filters in autumn, before the heating season, and in spring, before the birch trees flower in April\u2013May, when the air carries the most pollen.<\/p>\n<h2>Manufacturing quality<\/h2>\n<p>This filter set is <b>manufactured by Defro<\/b>, a trusted partner we\u2019ve worked with for many years. We purchase all products directly from them, ensuring authenticity and consistent quality. Defro\u2019s manufacturing facilities, <b>based in Poland<\/b>, uphold strict European production standards. Their advanced filtration technologies and rigorous testing processes guarantee optimal particle retention, airflow efficiency, and product reliability.<\/p>\n<p>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.<\/p>\n<p>By using <b>original Defro filters<\/b>, you guarantee that your ventilation system performs according to the manufacturer\u2019s specifications, maintaining both optimal indoor air quality and energy efficiency.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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 [&hellip;]<\/p>\n","protected":false},"featured_media":3104,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","_yoast_wpseo_canonical":"","_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_bctitle":"","_yoast_wpseo_primary_category":"","_yoast_wpseo_primary_product_cat":"","rank_math_title":"","rank_math_description":"Original M5+M5 filter set for the Defro DRX V \/ OPTI V MVHR unit: M5 extract and M5 supply filters. Size 445x171x48 mm. Replace every 3\u20136 months.","rank_math_focus_keyword":"","rank_math_canonical_url":"","rank_math_robots":[],"_how_to_change":"<b>Filter Replacement Instructions for Defro DRX V \/ OPTI V:<\/b>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Turn off the unit<\/strong>: Ensure the unit is powered off and disconnected from the electrical supply to prevent any accidents.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Access the filter compartment<\/strong>: Locate the filter compartment, accessible via the front panel.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Remove the old filters<\/strong>: Carefully remove the existing filters. Note the orientation and position of the filters for proper installation of the new ones.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Install new filters<\/strong>: Place the new filters into the compartment, ensuring they are correctly oriented and seated properly.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Reassemble the unit<\/strong>: Replace any panels or covers that were removed during the process.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Power on the unit<\/strong>: Reconnect the unit to the electrical supply and power it on.<\/span><\/li>\r\n<\/ol>","_delivery_info":"<strong>Order Processing Time<\/strong>\nAll in-stock products are dispatched within 1\u20132 business days, except for clearly marked items with an extended dispatch time (5\u201310 business days).\n\n<strong>Shipping Costs<\/strong>\nShipping is free for all orders over \u20ac59. For orders up to \u20ac59, shipping costs will be calculated at checkout.\n\n<strong>Order Tracking<\/strong>\nOnce your order has been dispatched, we will send you a confirmation email with tracking details so you can easily follow its journey to you.\n\n<strong>Business Days<\/strong>\nDelivery times are calculated in business days \u2013 from Monday to Friday, excluding public holidays.\n\n<strong>Easy returns within 30 days<\/strong>\nYou may return any product within 30 days of receiving it for a full refund \u2013 no questions asked!\n\nIf you need to return items after 30 days, please contact us. We review these requests on a case-by-case basis and will do our best to help.\n\n<strong>Condition of returned products<\/strong>\nWe accept returns of products unused in intact condition, including those unpacked but not damaged. Products that are damaged, dirty, or otherwise unusable cannot be accepted for return.\n\n<strong>Defective or incorrect items<\/strong>\nIf you receive a defective or incorrect product, please contact us immediately. We will ensure the issue is resolved promptly, as your satisfaction is our top priority.\n\n<strong>How to return an item?<\/strong>\nPlease contact us before sending back any products. We will provide you with the return shipping details and assist you throughout the process. We cover all costs of return shipping.\n\n<strong>Refund processing timeline<\/strong>\nOnce your returned product is delivered to us, we will verify its condition within 5 working days. Refunds will be processed within an additional 5 working days after approval, using the original payment method.\n\n<strong>Is it possible to cancel my order?<\/strong>\nYes, cancellations are possible before your order has been shipped.","_original_product_code":"","_shipped_within":"1-2 working days","_product_quantity":2,"_enable_bulk_discount":"yes","_bulk_discount_rules":[{"min_quantity":2,"discount_percentage":4},{"min_quantity":3,"discount_percentage":8},{"min_quantity":4,"discount_percentage":12}],"_csh_hreflang":"{\"x-default\":\"https:\\\/\\\/filterloop.eu\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"en\":\"https:\\\/\\\/filterloop.eu\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"en-GB\":\"https:\\\/\\\/filterexpress.co.uk\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"de-DE\":\"https:\\\/\\\/filterimperium.de\\\/produkt\\\/defro-drx-v-opti-v-filterset-m5m5-original\\\/\",\"en-DE\":\"https:\\\/\\\/filterimperium.de\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"et-EE\":\"https:\\\/\\\/filtriturg.ee\\\/toode\\\/defro-drx-v-opti-v-filtrikomplekt-m5m5-originaal\\\/\",\"en-EE\":\"https:\\\/\\\/filtriturg.ee\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"ru-EE\":\"https:\\\/\\\/filtriturg.ee\\\/ru\\\/produkt\\\/defro-drx-v-opti-v-komplekt-filtrov-m5-m5-original\\\/\",\"lv-LV\":\"https:\\\/\\\/filtrupasaule.lv\\\/produkts\\\/defro-drx-v-opti-v-filtru-komplekts-m5m5-originals\\\/\",\"en-LV\":\"https:\\\/\\\/filtrupasaule.lv\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"ru-LV\":\"https:\\\/\\\/filtrupasaule.lv\\\/ru\\\/produkt\\\/defro-drx-v-opti-v-komplekt-filtrov-m5-m5-original\\\/\",\"fi-FI\":\"https:\\\/\\\/filtri.fi\\\/tuote\\\/defro-drx-v-opti-v-suodatinsarja-m5m5-alkuperainen\\\/\",\"en-FI\":\"https:\\\/\\\/filtri.fi\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"sv-FI\":\"https:\\\/\\\/filtri.fi\\\/sv\\\/produkt\\\/defro-drx-v-opti-v-filteruppsattning-m5m5-original\\\/\",\"nl-BE\":\"https:\\\/\\\/filterdirect.be\\\/product\\\/defro-drx-v-opti-v-filterset-m5m5-origineel\\\/\",\"en-BE\":\"https:\\\/\\\/filterdirect.be\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"de-BE\":\"https:\\\/\\\/filterdirect.be\\\/de\\\/produkt\\\/defro-drx-v-opti-v-filtersatz-m5m5-original\\\/\",\"fr-BE\":\"https:\\\/\\\/filterdirect.be\\\/fr\\\/produit\\\/defro-drx-v-opti-v-set-de-filtres-m5m5-original\\\/\",\"lt-LT\":\"https:\\\/\\\/filtrupasaulis.lt\\\/produktas\\\/defro-drx-v-opti-v-filtru-komplektas-m5m5-originalas\\\/\",\"en-LT\":\"https:\\\/\\\/filtrupasaulis.lt\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\",\"ru-LT\":\"https:\\\/\\\/filtrupasaulis.lt\\\/ru\\\/produkt\\\/defro-drx-v-opti-v-komplekt-filtrov-m5-m5-original\\\/\",\"de-AT\":\"https:\\\/\\\/filtermarkt.at\\\/produkt\\\/defro-drx-v-opti-v-filterset-m5m5-original\\\/\",\"en-AT\":\"https:\\\/\\\/filtermarkt.at\\\/en\\\/product\\\/defro-drx-v-opti-v-filter-set-m5-m5-original-445x171x48\\\/\"}"},"product_brand":[10874],"product_cat":[1590,2470],"product_tag":[],"class_list":["post-2850","product","type-product","status-publish","has-post-thumbnail","product_brand-defro","product_cat-defro","product_cat-defro-drx-opti-v","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"wp_mcp_seo":{"plugin":"rankmath","title":"","description":"Original M5+M5 filter set for the Defro DRX V \/ OPTI V MVHR unit: M5 extract and M5 supply filters. 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