Reply To: Red or near-infrared bulbs for Sauna Unit? Home › Forums › Red Light Therapy › Red or near-infrared bulbs for Sauna Unit? › Reply To: Red or near-infrared bulbs for Sauna Unit? November 14, 2020 at 4:05 am #1598 skinnygirlParticipant How much do you think a sauna unit will cost? and do you think a DIY sauna unit will be durable?