Air Filter In Hvac System

These are installed either in wall mounted air return vents most common.

Air filter in hvac system.

The filter typically slides into a slot above or below the hvac unit. Placement of air filters within a buildings ventilation system can block airborne particulates that can include animal dander pollen mold spores bacteria and viruses depending on the minimum efficiency rating value merv of your air filters. The filtrete 1900 maximum allergen reduction filter is impressive at removing dust pollen and smoke from the air when the hvac system is running on its highest fan speed earning an. It might catch big particles but not smaller air.

On the one hand you have to make sure that air is flowing freely enough so that the motor and other moving parts don t have to work harder. As air moves through a building s hvac system air filters trap and collect large and small particles such as dust allergens and microorganisms. Interest in hvac systems is due in part to changing ideas about how the virus reaches new people. While an hvac system handles a building s heating cooling and ventilation the system s filter can be limited in terms of air purification.

The filter usually fits in a slot on the air return side of the unit. Most hvac systems use a standard 1 inch thick filter so we focused exclusively on 1 inch medium efficiency merv filters. The air filter is usually located in the return air duct or blower compartment before the return air reaches the air handler. The hvac systems of large buildings typically filter air before it is distributed throughout a building so consider upgrading hvac filters as appropriate for your specific building and hvac system consult an hvac professional.

Other hvac systems for any other kind of system look for the air filter behind the return. If the coronavirus was only dispersed by big spit droplets no one would be talking about the efficacy of ventilation systems says brent stephens an indoor air pollution and filtration researcher at the illinois institute of technology. For an hvac system it is recommended that you use filters for air conditioning systems with a merv. All central heating and cooling systems should have an air filter but the filter can be harder to locate on some hvac units than others.