Flu Season and Air Filters

Flu season is a time when many people fall ill due to the spread of the influenza virus. It is important to take precautions to protect yourself and your loved ones from getting sick. One effective way to do this is by using air filters in your home or workplace. In this blog post, we will explore how air filters can help protect you during flu season and which specific filters are recommended for this purpose.

How do air filters work?

Air filters are designed to remove particles and pollutants from the air, including viruses and bacteria. They work by trapping these particles as air passes through the filter, preventing them from circulating in the indoor environment. This can help reduce the risk of inhaling airborne viruses, such as the flu virus.

Which filters are recommended for flu protection?

When it comes to flu protection, not all air filters are created equal. It is important to choose a filter that is capable of capturing small particles, including viruses. The most effective filters for this purpose are high-efficiency particulate air (HEPA) filters. HEPA filters are capable of trapping particles as small as 0.3 microns with an efficiency of 99.97%. This means that they can effectively capture the flu virus and other airborne pathogens.

The flu virus is primarily transmitted through respiratory droplets when an infected person coughs, sneezes, or talks. These droplets can travel through the air and be inhaled by others, leading to the spread of the virus. Pleated filters can help prevent this transmission by capturing and trapping these respiratory droplets, effectively reducing the concentration of flu viruses in the air.

Black and red square image showing Merv 8 protection level. winter themed with snow falling over image
Buy Canadian Air Filters Pleated Merv 8 Filters - MERV 8 - Products – Canadian Air Filters


MERV is a rating system that measures the efficiency of an air filter in capturing particles of different sizes. The higher the MERV rating, the more efficient the filter is in removing smaller particles, including viruses. Filters with MERV 8, 11, and 13 ratings are particularly effective in capturing flu viruses, as they can trap particles as small as 0.3 microns.


Red and Black square image of Merv rating with information about efficiency. Snow-themed gif with snow falling

Buy Canadian Air Filters Pleated Merv 13 Filters - MERV 13 - Products – Canadian Air Filters

Pleated filters with MERV 8, 11, and 13 ratings are recommended for flu prevention because they have a high capture efficiency for small particles, including the flu virus. These filters can remove up to 85% of particles as small as 0.3 microns, significantly reducing the risk of airborne transmission of the flu.

Aside from flu prevention, pleated filters offer several other benefits. They can help improve indoor air quality by reducing the presence of allergens, dust, and other airborne pollutants. This is especially beneficial for individuals with respiratory conditions or allergies. Additionally, these filters can help prolong the lifespan of HVAC systems by preventing the buildup of debris and dust on sensitive components.

Proper maintenance is key

To ensure that your air filter is providing optimal protection during flu season, it is important to maintain it properly. This includes regularly replacing the filter according to the manufacturer's instructions. A dirty or clogged filter will not be able to effectively capture particles, reducing its flu-fighting capabilities.

During flu season, it is crucial to take steps to protect yourself and your family from getting sick. Using air filters can be an effective way to reduce the risk of inhaling airborne viruses, including the flu virus. When selecting an air filter for flu protection, choose a HEPA filter with additional features such as activated carbon or charcoal layers. Remember to properly maintain the filter by replacing it regularly. By taking these precautions, you can help create a healthier indoor environment and minimize the risk of flu transmission.

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