Choose correct venting material your ventilation hose should be made of rigid metal with a smooth interior to reduce lint buildup.
Exhaust fan required in laundry room.
A code compliant dryer vent is constructed of a rigid pipe of nonflammable material with a smooth interior finish the smooth interior inhibits lint buildup in grooves and it is not easily crushed or broken.
They pull out the existing air and replace it with fresh outdoor air simultaneously.
In those areas ventilation in bathrooms is required but it can be from a window or fan your choice.
All municipalities have different requirements but some do not draw a hard line on requiring exhaust fans.
Co in large amounts is hazardous to humans and can cause asphyxiation death.
A laundry room requires ventilation which can be a window or a fan.
If your laundry room has a pet care station or shower stall consider adding a bathroom style vent fan to the ceiling to help prevent moisture buildup.
Surprisingly bathroom fans are not required by some building codes.
While building codes differ around the country two code compliant vent material options are solid aluminum pipe that is at least 0 4 millimeters thick or.
Between the fan and the dryer s need for air you will be pulling air in from other areas.
If the laundry room is on an exterior wall with a window or door that air could easily come from the outdoors with all its heat humidity and pollen.
Mechanical code requires ventilation not exhaust the dryer takes air out of the room needs to draw air from somewhere this would be if its considered a confined space also if it was a gas fired dryer.