Through-Wall Fan

Corded

• Lowes $70 - [1]. 54 db.
• With temperature control AC Infinity - $100 - [2]. 48 dba.
  • Amazon - [3]

Other

• 4.5 sones menards $120 [4] 49.7 dba

UL Listed

• Super quiet 18dba, $70, controllable, with plug [5]
• 43.8 dba Sylvane, 54 dba on high - [6]
• ETL $90 49 dba [7]

Calculations

• What is Air Exchanges per hour for a well-ventilated house? 3 for good quality. [8]
• CFM of 120 gets us one exchange per 20 minutes for a 2400 cf room (about 240 sf), so we have 3 AAH for [9]

Corded vs Plug-In

• If Corded, Needs Access Panel to Hide Cord
• It has a wall-wort [10]
• If hardwired, needs disconnect, but not if it's a small device under 300W [11], where the circuit breaker can be a lockable disconnect.