Indoor Air Quality Tool

Indoor Air Quality Assessment Tool | Emu Passive

Indoor Air Quality Assessment Tool

Based on ASHRAE Guideline 44 and EN 13779

Custom data entry for your building

Building size
Leave blank to estimate from floor area.
Building air leakage
3.00 ACH50

or

Entering a value here overrides the ACH50 slider.
Occupants
people
Fresh air system (ERV/HRV)
0 cfm

Indoor air quality assessment

Fresh Air Supply

0cfm/person

Protection from Wildfire Smoke and PM2.5

0% - 0%

Carbon Dioxide Concentration (CO2)

—

Recommendations

Air Leakage

Fresh Air System (ERV/HRV)

Air Filter

Additional Notes

Details

Building size & air leakage
Occupancy & fresh air system

PM2.5 concentrations are modeled per ASHRAE Guideline 44 (infiltration at 1–3 Pa, outdoor PM2.5 of 100 µg/m³, constant-flow system without recirculation). CO2 categories follow EN 13779 IDA classes. Beta version.

Emu Passive’s Indoor Air Quality Tool

This tool is intended to show users the impact of building air tightness, fresh air ventilation rates, and air filtration grade on the indoor air quality inside buildings.

Particulate matter concentrations (PM2.5) are modeled according to ASHRAE Guideline 44.

Carbon dioxide concentration is based on EN 13779.

NOTICE: please consider this a beta version. Your comments and questions are welcome – send us a message here.