When Should I Change My Air Filter?

At Carolina IAQ, we know that maintaining high air quality in commercial and healthcare HVAC units is crucial, and the air filter is a vital component of any HVAC system. In this blog we’ll highlight what factors can affect air filters, how you know when they need to be changed, and why different levels of filtration are essential in different settings.

Air Filters and their Impacts

Air filters work to trap particles such as dust, pollen, and bacteria, ensuring that the air circulating throughout the building is both clean and healthy. However, many factors can impact when an air filter needs to be changed, such as:

  • the type of building
  • the number of occupants
  • the usage of the HVAC system

Indicators for Replacement

At Carolina IAQ, one of the key indicators that an air filter needs to be changed is pressure drop. As a filter becomes clogged, it becomes more difficult for air to pass through it, leading to an increase in pressure drop across the filter. Monitoring pressure drops can help identify when a filter needs to be changed, as it will reach a point where the pressure drop is too high and the filter is no longer functioning effectively.

Carolina IAQ’s High-Efficiency Air Filters

In healthcare settings, it's important to use high-efficiency air filters that are designed to trap even the smallest particles, such as bacteria and viruses. Filters with a high Minimum Efficiency Reporting Value (MERV) rating are recommended for healthcare settings, as they are designed to trap even the tiniest particles.

About Carolina IAQ

Carolina IAQ is a leader in indoor air quality solutions. With over 50 years of experience in this field, our team can evaluate your existing HVAC system and recommend the best air filter options, taking into consideration all of the factors that can impact when a filter needs to be changed. We also provide regular maintenance services to ensure that the air filters are always clean and functioning at their best. Our expertise provides peace of mind for building owners and managers, in knowing that their HVAC system is being taken care of by experts.

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