Twin Fan - $10 (San Francisco)

San Francisco weather is unpredictable, so better be prepared with this amazing window fan.
We had set this up in our bathroom window in our previous apartment as there was no exhaust fan and this product has reversible airflow so you can use this to even send air out.
Retails for ~$50 on Amazon Genesis Twin Fan High Velocity Reversible AirFlow Fan, LED Indicator Lights Adjustable Thermostat & Max Cool Technology, ETL Certified, White (A1WINDOWFAN) https://a.
co/d/buYrxtJ