Air Filter In Hvac System

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

Air filter in hvac system.

As air moves through a building s hvac system air filters trap and collect large and small particles such as dust allergens and microorganisms. The air filter is usually located in the return air duct or blower compartment before the return air reaches the air handler. Most hvac systems use a standard 1 inch thick filter so we focused exclusively on 1 inch medium efficiency merv filters. While an hvac system handles a building s heating cooling and ventilation the system s filter can be limited in terms of air purification.

According to the american society of heating refrigerating and air conditioning engineers ashrae this filtration helps provide healthier indoor air quality a filter s merv number indicates how it s rated to remove these particles. It might catch big particles but not smaller air. 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. An hvac air filter for homes is designed to keep your air clean and to keep the system running smoothly.

The filter usually fits in a slot on the air return side of the unit. For an hvac system it is recommended that you use filters for air conditioning systems with a merv. Interest in hvac systems is due in part to changing ideas about how the virus reaches new people. Other hvac systems for any other kind of system look for the air filter behind the return.

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. The filter typically slides into a slot above or below the hvac unit. Vertical hvac units these systems are usually found in smaller basements or crawl spaces where space is limited. 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.