Include bacteria and viruses, dust mites, pet dander from household animals, volatile organic compounds released from cleaning products and building materials, and biological particles floating in your air. These airborne particles are measured in microns, which are incredibly small at 1/25,000 of an inch.

Most heating systems include a basic filter on the return air inlet that protects your furnace and air conditioning components from debris buildup. However, you can upgrade to advanced filtration systems designed to significantly improve your indoor breathing environment. These enhanced filters are rated using the Minimum Efficiency Reporting Value system, known as MERV, which measures how effectively they capture microscopic particles.

For over 75 years, Laird & Son has helped Toronto families create healthier home environments through professional air quality solutions and expert system maintenance.