Fresh air requirement for a room can be calculated using the formula: Fresh air (CFM) = volume of the room (cubic feet) × air changes per hour. Determine the volume of the room by multiplying the length, width, and height measurements. The recommended air changes per hour vary depending on the room function and occupancy, typically ranging from 4-8 for most spaces.
N=60*fresh air/volume(room)
window draws in air from outside the room. split just cycles the air inside the room. you decide which is healthier based on your situation.
One can purchase split air conditioning systems from Royal Fresh Air, eBay, Orion Air Sales. Ductless mini-split air conditioners are a good choice and is relatively easy to install.
no it's impossible ....
Yes, in most cases it circulates the room air, but, fresh air can also be inducted.
Open it. You could also open a window in the same room to get more fresh air in.
Air fresheners and toilet deodorants contain fragrance chemicals that are released into the air, masking unpleasant odors with a more pleasant scent. These products typically work by either neutralizing odors or by overpowering them with a stronger, more pleasant fragrance.
you just open the window wide
A chimney helps to ventilate a room by drawing up warm air and smoke from the fire and expelling it outside. This creates a natural airflow that brings fresh air into the room. The open fire also helps by consuming oxygen and creating a pressure differential that encourages fresh air to enter the room.
The only benefit you have from a split A/C system is the ability to send cold air into different rooms. While the single room A/C unit will make one room a lot colder then the split system.
to keep people healthy and continuous flow of fresh air.