Bathroom (2nd floor) & kitchen (1st floor) vents of 782 & 784, shown as example, complex-wide.
Dryer vent shared by 790-792, flap ajar
Dryer vent shared by 794-796, flap ajar
Dryer vent shared by 212-214, flap ajar
Dryer vent shared by 786-788, flap at rest correctly sealing vent!
Dryer vent 210, no flap or hood
Dryer vent 780, flap ajar
vent guard at Lowe's but Home Depot has a similar item
the vent guard opens for cleaning!