{"id":27874,"date":"2026-07-22T09:59:04","date_gmt":"2026-07-22T06:59:04","guid":{"rendered":"https:\/\/filtrupasaulis.lt\/?p=27874"},"modified":"2026-07-22T09:59:13","modified_gmt":"2026-07-22T06:59:13","slug":"why-is-it-essential-to-replace-mvhr-filters-in-summer-7-key-questions-and-answers","status":"publish","type":"post","link":"https:\/\/filtrupasaulis.lt\/en\/why-is-it-essential-to-replace-mvhr-filters-in-summer-7-key-questions-and-answers\/","title":{"rendered":"Why Is It Essential to Replace MVHR Filters in Summer? 7 Key Questions and Answers"},"content":{"rendered":"\n

Many people associate summer with clean, fresh air. However, this is precisely the time of year when an MVHR system faces one of its greatest challenges<\/strong>. Pollen, fine dust, fluff, insects and even smoke from wildfires significantly increase the load on MVHR filters<\/strong>.<\/p>\n\n\n\n

Many homeowners believe that filters are most important during autumn or winter, when the heating season begins. However, scientific research and manufacturers\u2019 recommendations suggest otherwise – summer is one of the most important times of the year to ensure your filters remain clean.<\/strong><\/p>\n\n\n\n

Why Do MVHR Filters Become Contaminated More Quickly in Summer?<\/strong><\/h2>\n\n\n\n

During summer, the air contains a much higher concentration of biological particles. These include pollen from trees, grasses and weeds, plant fluff, insects and fine dust. In addition, there is increased air pollution from construction sites, road traffic (PM10 and PM2.5 particles), and during certain periods, even smoke from wildfires.<\/p>\n\n\n\n

According to the European Environment Agency<\/a>, even short-term increases in particulate matter reduce outdoor air quality, and much of this pollution is captured by MVHR filters<\/strong>.<\/p>\n\n\n\n

Is Replacing Filters Once a Year Enough?<\/strong><\/h2>\n\n\n\n

No. Nearly all leading European MVHR manufacturers recommend<\/a> checking filters every 3-4 months<\/strong> and replacing them at least twice a year<\/strong>. In areas with higher levels of pollution, filters may need replacing even more frequently.<\/p>\n\n\n\n

If you live in a city, near a busy road, close to construction sites or in an area with high pollen levels, replacing your filters during summer becomes a necessity rather than a recommendation.<\/strong><\/p>\n\n\n\n

What Happens When Filters Become Too Dirty?<\/strong><\/h2>\n\n\n\n

Clogged MVHR filters<\/strong> increase airflow resistance. As a result:<\/p>\n\n\n\n