Air Filters in Winter

Why are air filters important in Canadian winters?

In Canadian winters, the harsh weather conditions can have a significant impact on indoor air quality. As the temperature drops, people tend to spend more time indoors, relying on heating systems to keep them warm. However, this increased reliance on heating systems can lead to a buildup of pollutants and allergens in the air, which can negatively affect respiratory health.

Woman indoor near a heater

This is where air filters come into play. Air filters are designed to trap and remove airborne particles, such as dust, pollen, pet dander, and mold spores. By using air filters, you can improve the quality of the air you breathe indoors, reducing the risk of respiratory issues and allergies.

What are MERV 8, 10, 11, and 13 pleated filters?

MERV stands for Minimum Efficiency Reporting Value, which is a rating system used to measure the effectiveness of air filters. The higher the MERV rating, the more efficient the filter is at capturing smaller particles.


pine trees covered in snow

MERV 8, 10, 11, and 13 pleated filters are commonly used in residential and commercial HVAC systems. These filters are designed with pleats, which increase the surface area and allow for better particle capture. They can effectively remove a wide range of airborne contaminants, including dust, pollen, mold spores, and even some bacteria.

Why should you consider using Canadian Air Filters’ MERV 8, 10, 11, or 13 pleated filters in winter?

During the winter months, the air tends to be drier, which can lead to an increase in airborne particles. Additionally, people tend to spend more time indoors, which means they are exposed to indoor air pollutants for longer periods. Using MERV 8, 10, 11, or 13 pleated filters can help mitigate these issues by capturing a higher percentage of airborne particles, improving indoor air quality.


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Furthermore, these filters can also help protect your HVAC system from damage. As the air becomes colder, it can carry more moisture, which can lead to the formation of ice on the evaporator coils. This ice buildup can restrict airflow and put strain on the system. By using high-quality pleated filters, you can reduce the amount of moisture and contaminants that enter the system, helping to maintain its efficiency and prolong its lifespan.

What about Canadian Air Filters’ HEPA filters?

HEPA (High-Efficiency Particulate Air) filters are known for their exceptional filtration capabilities. These filters are capable of capturing 99.97% of particles as small as 0.3 microns, making them highly effective at removing even the smallest airborne contaminants.

While HEPA filters are not typically used in residential HVAC systems, they can be a great option for individuals with specific respiratory conditions or severe allergies. HEPA filters can provide an extra layer of protection by removing a wide range of pollutants, including fine dust, smoke particles, and even some viruses.


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Using air filters, such as MERV 8, 10, 11, or 13 pleated filters, can greatly improve indoor air quality during Canadian harsh winters. These filters can effectively capture airborne particles and help protect your HVAC system. For individuals with specific respiratory conditions or severe allergies, HEPA filters can provide an even higher level of filtration. By investing in high-quality air filters, you can ensure that you and your family breathe clean and healthy air throughout the winter season.

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