7 Signs That Your HVAC Air Filter Needs Replacing

When it comes to air filters, there are several ways to know it’s time to change them. The most obvious is when dust collects around the vents. The best way to check for this is to hold a white sheet several inches away from a vent and see if it can be seen through the filter material. This test should be repeated to make sure the filter is clean.

Allergy Symptoms

Air filters collect airborne pollutants like dust, pollen, pet dander and cigarette smoke before the warmed or cooled indoor air is circulated throughout your home. However, the filter can become clogged with these contaminants over time. It can prevent it from effectively collecting and releasing these pollutants.

The need to replace HVAC air filters Richmond may become apparent if you observe an abrupt increase in respiratory or allergy symptoms in your home. Additionally, seeing more dirt or dust around your vents can indicate that the filter needs to be changed.

Unpleasant Smells

If you’ve noticed an unpleasant smell in your home, it could be caused by a dirty filter. Clogged filters release dust and other contaminants into circulated air, causing them to accumulate on surfaces near vents and ductwork. A dirty air filter could worsen symptoms if you or anyone in your home has allergies or asthma. Allergens cling to the filter and are released back into your home, resulting in more sneezing and wheezing. Pull out the filter and take a look at it. If it is covered in dirt, it’s time to replace it.

Increased Energy Bills

Air filters have a certain lifespan. They can last a while, but it’s time for a new one if dirt covers the entire filter surface or becomes thick enough to obscure the material. There isn’t a schedule for replacing HVAC filters, but many homeowners find that every 90 days works well. Routine filter changes will lower energy expenses by boosting system efficiency and preserving clean indoor air. It can help to ease allergy symptoms for people in your home and reduce the risk of odor-causing allergens recirculating throughout the house.

Frozen Furnace

A frozen furnace is a nightmare that no homeowner wants to experience. If your HVAC unit is experiencing ice buildup, it’s time to turn off the power and call an expert for assistance. Frozen air conditioners often occur when dirty evaporator coils restrict cool airflow. Using a soft-bristled brush and cleaner, you can remove dirt from the coils and ensure the airflow necessary to heat your home. Furnace freeze-ups can also occur when the condensation drain line becomes blocked by debris or ice. Make sure your supply and return vents are open and not being blocked by furniture or curtains to improve airflow.

Reduced Airflow

Dust and other debris can clog air filters over time, limiting airflow. It forces your HVAC equipment to work harder and decreases its efficiency. It leads to a spike in your energy bill. Changing your filter is an easy DIY project. However, if your vents are high or in a tight space, you should contact a professional to perform the task. A musty odor may also indicate that it’s time to replace your filter. This smell can be caused by pet dander and fur accumulating on the filter over time.

Poor Indoor Air Quality

If you or a family member has asthma or other respiratory issues, checking your filter is a good idea. Allergens that can spread throughout the house, such as dust mites and pet dander, can result in respiratory issues. Dust collecting around vents or on furniture is another sign that you need a new air filter. Particulates can accumulate on surfaces due to clogged filters releasing particulates into the air.

Sinus congestion, eye irritation, exhaustion, and coughing are some of the short- and long-term health effects of poor indoor air quality. Those who have chronic medical conditions, older people, and young children are particularly vulnerable to these effects.

Reduced System Efficiency

A clogged filter restricts airflow, forcing your system to use more energy than it would otherwise. It can lead to skyrocketing energy bills and wear down components, shortening their life. If you see dust collecting around vents or ductwork, this can be a sign that the air filter needs replacing. Dirty filters release particulates, which can be blown out of the vents onto your home or office surfaces. Keeping up with routine air filter replacements is one of the best ways to reduce indoor allergens and promote HVAC efficiency. Check your filter regularly and change it before it’s too dirty to work effectively.