Air supply filters

Air supply filters are essential components in HVAC systems designed to remove dust, pollen, allergens, and other airborne contaminants from incoming outdoor air. These filters ensure that the air circulated within residential, commercial, and industrial buildings remains clean and safe for occupants. By capturing particulate matter, they also protect sensitive ventilation equipment, such as fans and heat exchangers, from premature wear and clogging. Selecting the appropriate filter depends on the specific air quality requirements of the environment and the technical specifications of the ventilation unit. Regular replacement of these filters is necessary to maintain optimal airflow and energy efficiency throughout the system's operation.

Use cases of air supply filters

Air supply filters are utilized in various settings to maintain hygiene and equipment longevity:

• Residential ventilation systems to reduce indoor allergens and dust.
• Commercial office buildings to ensure a healthy working environment.
• Industrial facilities where specific air purity standards are required for manufacturing processes.
• Hospitals and laboratories requiring high-efficiency particulate filtration.

Types of air supply filters

Filters are categorized based on their efficiency and construction:

• Coarse filters (G-class): Designed to capture large dust particles and protect primary filters.
• Medium filters (M-class): Used for standard air purification in general ventilation systems.
• Fine filters (F-class): Capable of capturing smaller particles, including pollen and fine dust.
• HEPA filters: High-efficiency filters used in environments requiring sterile air conditions.

Key features to consider

When evaluating air supply filters, consider the following technical aspects:

• Filtration efficiency: The ability to capture specific particle sizes.
• Pressure drop: The resistance the filter offers to airflow, which impacts energy consumption.
• Dimensions: Ensuring the filter fits the specific housing of the ventilation unit.
• Service life: The duration the filter can operate before requiring replacement based on dust-holding capacity.

How to choose air supply filters

To select the correct filter, verify the manufacturer's recommendations for your ventilation unit. Check the required dimensions and the filtration class (e.g., G4, M5, F7) specified in the system documentation. Consider the local environmental conditions, such as high pollution or pollen levels, which may necessitate higher filtration grades. Always prioritize filters that match the system's airflow capacity to prevent motor strain. Regular maintenance schedules should be planned based on the manufacturer's guidelines to ensure consistent performance.

Which ventilation filters are the most popular and affordable in 2026?

The full list of popular models at affordable prices is available on this page. In 2026, the following models show high demand and an excellent price-to-quality ratio:

• Alnor FLX-CS-PVC-75 End Cap for 75 mm Ventilation Duct for 2.49€
• FEPRE Ventilation Grid 001571 for 2.99€
• FEPRE VENT 001410 Ventilation Component for 2.99€
• FEPRE Ventilation Grid 001519 for 2.99€
• FEPRE 005937 Aluminium Grid with Net for 2.99€

Why is it worth buying ventilation filters at AiO.lv?

At the AiO.lv online store, you can place an order at a great price with delivery across Latvia — to Riga, Daugavpils, Liepaja, Jurmala, Ventspils, and other cities, as well as throughout Europe. We offer products from leading manufacturers: Electrolux, Epson, Philips, Siemens, AEG, DeLonghi, Elica, OEM, ESPERANZA, SOEHNLE, Bosch, BEKO, BLAUPUNKT, NEFF, Gorenje, HANSA, VENTA, Thermex, Beurer, TEKA. When you shop with us, you get:

• official warranty and guaranteed quality;
• convenient payment options (including installment and credit);
• fast and reliable delivery across Latvia and to any EU country.

FAQ

Where can you find a ventilation filters with cheap prices?

You can buy cheaper at the AiO.lv online store. We offer competitive prices and regular discounts, so you always have the chance to find a great deal.

What is the delivery time for ventilation filters?

If you place your order today, delivery will take between 1 and 5 business days depending on the chosen method.

How long is the warranty period for ventilation filters?

Our store provides an official manufacturer’s warranty ranging from 12 to 36 months, depending on the model and brand. If needed, you can always contact our customer service department or the manufacturer’s authorized service center for support.

Are ventilation filters purchasable with leasing?

Yes, if the selected product costs more than €50. You can learn more about installment purchase options and the terms of application on the Payment page.

Can ventilation filters be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and throughout Europe. All product prices are shown with VAT included. In certain cases, a 0% VAT rate may apply — for example, when purchasing from other EU countries with a valid VAT number. We issue an invoice immediately after the order is placed, support BIS electronic invoices, and automatically generate all required accounting documents. To complete a purchase for a company, simply select the company profile during checkout.