Sirspeedy,
What humidifier does your friend own?
If it is the ultrasonic type you will want to let him know that it leaves a calcium deposit on everything in the room if the machine is not maintained properly. My unit has a small container within the unit that gets filled with some kind of substance to reduce the calcium from spreading into the room.
The best humidifier available is the one that has rotating disks that sit in a reservoir of water and a fan blowing the air around the disks to humidify the air. It is the venta I believe. Keeping our rooms humid also effects our health so it is an important issue.
What humidifier does your friend own?
If it is the ultrasonic type you will want to let him know that it leaves a calcium deposit on everything in the room if the machine is not maintained properly. My unit has a small container within the unit that gets filled with some kind of substance to reduce the calcium from spreading into the room.
The best humidifier available is the one that has rotating disks that sit in a reservoir of water and a fan blowing the air around the disks to humidify the air. It is the venta I believe. Keeping our rooms humid also effects our health so it is an important issue.