Shopping for air purifiers and air cleaner Filters in Canada? Staples is here to help. For many, the filter you choose will depend on the air purifier or filter you’ve already purchased for your home and the name is often accessible from your air purifier or air cleaner’s product page or manual. However, whenever you’re shopping for an air filter, there are a few important things to look for. How to Choose the Right Air Purifier or Air Cleaner FilterFor starters, always make sure to select a filter that fits the dimensions required by your air purifier or cleaner. From there, it may be in your best interest to find a HEPA filter for your device. HEPA stands for high-efficiency particulate absorbing filter or high-efficiency particulate arrestance filter, and is the most common efficiency standard for today’s air filters.To meet the HEPA quality standard, an air filter must offer a filtration efficiency rate of 99.97% and the particles that are retained must be as small as .3 micrometers. What this means for users, is that HEPA filters are certified to remove the large majority of allergens, dust, pollen, and mold from the air in a given space. Replacing the air filter in your air purifier or air cleaner will ensure that your device continues to perform properly and keep you and your household safe.Depending on how often you keep your air purifier or air filter running, you may need to replace your air filter at least once a year and clean the filter at least every 2-4 weeks. The timeline may shorten if you live in an industrial cityscape in which case it’s especially important to find the best quality HEPA certified air filter for your device.