Fresh air and ERV equipment

Fresh Air and ERV Systems

Plan fresh air ventilation systems and fresh air exchanger requests around outdoor-air CFM, ACH, ERV fresh air intake, climate, humidity transfer, Air Filter Box or filter path, duct route, controls, and service access.

Projects need planned outdoor air without guessing at CFM, ERV/HRV direction, climate fit, filter pressure, duct route, controls, or installation space.

Fresh Air and ERV Systems: fresh air ventilation systems and fresh air exchanger options for offices, gyms, cafes, classrooms, and multi-room projects where outdoor-air CFM, ERV fresh air intake, HRV or ERV recovery direction, filters, duct route, controls, service access, and current model documents need to stay together.

Updated 2026-06-25

CFM airflow target ACH room exchange ESP duct resistance FLT Air Filter Box / filter path

Fresh air series

Heat Recovery Ventilation Series

heat recovery ventilator sizing product page where heat recovery ventilator sizing starts with outdoor-air CFM, room use, HRV or ERV recovery direction, duct route, filter access, service side, and current model documents for heat recovery ventilation unit, ventilation heat recovery unit, heat ventilation recovery unit, fresh air exchanger selection input, ERV fresh air intake, HRV sizing notes, and heat recovery vent intake planning.

Typical applications

Space use: Offices
Air path: Classrooms
Service focus: Hotels

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Fresh air series

Air Filter Box Series

Air filter box series for fresh air systems, fresh air intake filter box HVAC requests, and inline air duct filter planning where filter type, duct size, pressure impact, access side, and service routine need to be reviewed.

Typical applications

Space use: Fresh air filtration
Air path: PM2.5 reduction review
Service focus: Ducted filter planning

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Selection data

Fresh Air Room Review

CFM, ACH, climate, ERV fresh air intake, filter access, and duct route establish the planning basis; model data closes the equipment review.

Project data

Define room type, area, ceiling height, expected occupancy, outdoor-air target, and operating schedule.
Estimate planning CFM or ACH before discussing an ERV, HRV, fresh air ventilation system, or fresh air exchanger.
Compare the ERV or HRV direction based on climate, humidity goals, ERV fresh air intake, and building use.

Documents

Product documents 2 available Series pages 2 series Model documents Request Certification and availability Confirm by model

Selection checks

Airflow demand CFM first. Recovery path Match recovery type to climate and humidity goals. Duct and filter reality Collect filter-box and duct data early. Space type Tie CFM to actual use.

Decision matrix

CFM: How much outdoor air the project is planning around. / Ventilation CFM calculator.
ACH: How quickly the room air volume is exchanged. / CFM to ACH comparison.
Fresh air exchanger: Whether the project needs a ducted fresh air exchanger, ERV fresh air intake, Air Filter Box, or fan-supported path. / Collect CFM, climate, duct, filter-box, and service notes.
ERV vs HRV: Whether humidity transfer should be part of the review. / ERV/HRV guide.
External static pressure: Whether equipment can move air through ducts, filters, and grilles. / Collect duct route and filter data.
Filter access: Whether maintenance will be realistic after installation. / Confirm filter type and service clearance.

Is an ERV always better than an HRV?

No. Climate, humidity goals, building use, and equipment documents all matter. The ERV vs HRV guide helps frame the first discussion.

Can the calculator replace mechanical design?

No. It gives planning-level airflow ranges for an inquiry, not final engineering approval.

What should be checked before choosing ERV or HRV?

Review climate, indoor humidity goal, occupancy, filter access, duct route, and service clearance before narrowing the equipment family.

Air Curtain Series

Ventilation Fan Types

Fresh Air Systems

Exhaust Fan Options

Dehumidifier Options