Invent Flex ENERGY STAR Ventilation Fan (110 CFM, 1.0 Sones) – 4 in duct
Compact exhaust fan with 110 CFM, 1.0 sones, and ENERGY STAR efficiency for rooms up to 105 sq. ft. Easy install from the room side. Customer note: easy to install and moves air well, with mixed feedback on noise
Highlights
- 110 CFM performance
- 1.0 sones quiet option
- ENERGY STAR certified
Pros
- high airflow for small-to-medium rooms
- low noise level (1.0 sones) for some users
- easy room-side installation
- ENERGY STAR qualified
- true-seal damper technology for reliability
Cons
- noise level feedback mixed
- design may have mixed reception
Best For
Features
- Energy Star certified exhaust fan at 110 CFM and 1.0 sones for spaces up to 105 sq ft with 4-inch duct
- TrueSeal Damper Technology reduces air leakage by up to 50% for improved home performance
- Retrofit-friendly installation that can be completed from the room side without attic access
- InVent design provides efficient ventilation to reduce fogged mirrors and maintain comfort
- 4-inch ducting kit includes 9 pieces for replacing exhaust fan ducting and resin-made durability
