(1:35) How much mold is growing before you even see it

(3:30) Micro-toxins from air and food

(5:25) Ductless exhaust fans

(6:00) Mike finds ductless fan while painting

(7:00) Ductless fans are worthless

(8:10) Mike's designated #1 bathroom only

(10:50) It's not easy to install a fan

(12:11) Fans are critically important in the home

(15:05) Don't let "ductless" tempt you

(16:40) Contractors( are trying to push ductless fans

(17:13) Meth is drawn to the range fans

(18:00) Summary: Don't let anyone try to talk you into a ductless fan

(18:50) Negative and positive pressure

(19:30) Keep as many ducts in your house as you can

(20:40) This is the time to really open up your house in Spring

(20:50) Mold loves stagnant air and hates moving, fresh air