Cheap fiberglass filters are designed to stop dust, debris and hair from gunking up the system. While they do little to filter out allergens and other irritants, using them keeps your HVAC system clean and efficient. … They can add more resistance to airflow, which makes the system more expensive to operate.
Is it OK to buy cheap air filters?
Yes, in general, the more expensive air filters are more effective, but a single person with no pets and allergies might not need as much filtration as a family of five with three pets and a child with asthma. Also consider how long your air filter will last.
Is it worth it to buy expensive air filters?
More expensive filters like Pleated Residential filters filter out dust mites, pollen, mold and pet dander and even bacteria and so are worth the money especially for those with severe allergies. HEPA filters filter bacteria and viruses and are worth the extra money for those with respiratory conditions like emphysema.
Do expensive air filters restrict airflow?
Does Increased MERV Decrease Air Flow? While those high MERV filters are great at filtering debris and cleaning the air in your home, they reduce the air pressure in your duct system. This could potentially raise your energy bills and take a toll on your furnace or air conditioning unit.
Is there really a difference between air filters?
The short answer is, no, they’re not all the same. In fact, there are many different types of air filters available and choosing the right one can make a real difference in the lifespan of your HVAC system. … You see, the higher the MERV rating, the more the filter restricts air flow.
Do 3 month air filters really work?
Some high rated air filters that are 2 to 5 inches thick have an operational life span of one year. Flat filters should be replaced every 3 months, or monthly if there are allergies, pets, or someone smokes. Of course, as filters fill up with dirt, their airflow will drop and blower performance will decline.
Why are air filters so expensive?
The Real Reason HEPA Filters Are So Expensive
Put simply, it comes down to psychology and marketing. We buy HEPA filters and air purifiers to protect our health. … Companies market and sell their HEPA filters with a higher price tag to make their filters look superior.
Are pleated air filters bad?
Pleated filters are bad for your system because they block too much air, forcing the HVAC motor to work harder to pull in the air it needs and burning it out faster. … A decent amount of those pollutants cycle back through the system into your home so that you breathe them in.
Do pleated air filters restrict airflow?
Because they restrict airflow to your HVAC system. Pleated, high-MERV filters definitely capture a lot of pollutants, but they also restrict the movement of air into your blower or furnace. … These cover all the air filtration basics – dust and pollen removal, for example – without restricting airflow.
Do high performance air filters make difference?
One of the benefits of a high flow air filter is that, unlike regular filters, you don’t have to change it every year. … In fact, a high flow air filter can actually increase your horsepower by about 3 to 5 HP and increase your torque as well. At the same time, this can lead to increased fuel efficiency.
Why have furnace filters become so expensive?
Furnace filters have been getting more effective in collecting dirt and dust particles since at least the early 1980’s, with corresponding increases in costs of production and profits and costs. The smaller the particle that the filter will trap, the more expensive it is to produce and buy.
What MERV rating should I use?
As a general rule, residences do not use higher than MERV 8 filters. We do recommend that everyone uses filters that have at least an 8 MERV rating. These filters will remove the majority of pollutants from your indoor air. … MERV 13 to 16 ratings are usually reserved for filters for labs, hospitals, and operating rooms.
Are high MERV filters worth it?
While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow. … If the MERV rating on your furnace is too high, it may force your furnace to work too hard and leave it vulnerable to damages.
Does the air filter matter?
Not only can home air filtration be a matter of life and death for those who suffer from a multitude of respiratory conditions, but even those considered normal and healthy can benefit from a cleaner, dust-free, and allergen-free air.
Do HVAC filters help with Covid?
Portable air cleaners and HVAC filters can reduce indoor air pollutants, including viruses, that are airborne. By themselves, portable air cleaners and HVAC filters are not enough to protect people from the virus that causes COVID-19.
What type of air filter is best?
High-efficiency particulate air (HEPA) filters are recommended by the U.S. Department of Health because they are able to remove at least 99.97% of airborne allergens and pollutants — including mold spores and dust that are as small as 0.3 microns.