absolutely
Air conditioners generate a lot of heat, so normally it would be counterproductive not to vent them. However, dehumidifiers are basically air conditioners that are not vented. Although they force water out of the air by cooling it, I learned from personal experience that they (or at least the model I had) heat an area more than they cool it.
Yes, portable air conditioners need to be vented to the outside to expel hot air generated during the cooling process.
Some of the best portable air conditioners that come with window vent kits included are the Honeywell MN10CESWW, Black Decker BPACT08WT, and Whynter ARC-14S.
The air from the vent should be 18 to 22 degrees F lower than the temperature of the air going into the return.
You need a filter retainer
Air conditioners take in air from outside through a vent or intake system, which draws in the warm air from the surrounding environment.
Some what but if you have a large hair dog, you need to filter each return vent to keep dander out of furnace ducts
To add a return vent to existing ductwork, you will need to locate a suitable area on the ductwork where the vent can be installed. Cut a hole in the ductwork, install the vent, and seal it properly to ensure efficient airflow. It is recommended to consult a professional HVAC technician for proper installation and to ensure the system functions correctly.
I would say ok on the supply but not hte return.
Portable air conditioners come with a vent hose that can be placed in a nearby window or vented through a hole in the wall like your clothes dryer.
A return vent is usually a large grate on a wall or ceiling that allows air to flow back into the heating or cooling system. It is typically located in a central area of a home, such as a hallway or living room, to efficiently circulate air throughout the house.
The Vent der Midi winds are winds that blow over central France of the Mountains of Central Massif towards Lyon