Airwash Whisper 675 - Central (HEPA) Air Filtration System

Model Airwash Whisper 675
Class: Central HEPA Filtration System
Delivered Airflow: 675 CFM (Cubic Feet per Minute) 
Dimensions: 14.5" square, 27.25" high
Duct Connections: 10" round intake, 8" round outtake
Power Consumption: 225 Watts

Filter Life:
- Pre-Filter: Washable (12 months)
- HEPA Filter: 2-5 years
- Carbon Filter: 6 months
- Optional V.O.C. Canister: 12 months

 Air Changes per Hour (ACH)

(How many times can all the air in a vehicle/area/room be cleaned through the filter each hour?)

Based on 8' ceilings. Generally speaking, the more air changes per hour (ACH) you can provide, the more effective a HEPA filter can be.

1 ACH provides excellent air cleaning results (higher is recommended for people with sensitivities).
Remember: More HEPA is better than less, but some HEPA is better than nothing at all.