To have your tight house (and your family) breathe properly you’ll want to couple your smart bathroom exhaust fans with filtered air intakes. HRV/ERVs can do t

To have your tight house (and your family) breathe properly you’ll want to couple your smart bathroom exhaust fans with filtered air intakes. HRV/ERVs can do this but are overkill in many mild climates. A set of simple fan+filter pairs does the trick for us, can’t believe we lived so many years in poor ventilation.