Air Filter In Hvac System

The filter usually fits in a slot on the air return side of the unit.

Air filter in hvac system.

The air filter is usually located in the return air duct or blower compartment before the return air reaches the air handler. It might catch big particles but not smaller air. 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. 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.

Vertical hvac units these systems are usually found in smaller basements or crawl spaces where space is limited. Most hvac systems use a standard 1 inch thick filter so we focused exclusively on 1 inch medium efficiency merv filters. These are installed either in wall mounted air return vents most common. 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.

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. 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. An hvac air filter for homes is designed to keep your air clean and to keep the system running smoothly. 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.

Interest in hvac systems is due in part to changing ideas about how the virus reaches new people. For an hvac system it is recommended that you use filters for air conditioning systems with a merv. 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 typically slides into a slot above or below the hvac unit.