The National Association of the Deaf (NAD) defines a person who is deaf as someone who is âunable to hear well enough to rely on their hearing and use it as a means of processing information.â Additional information can be found at the NAD site, http://www.nad.org/infocenter/ infotogo/dcc/difference.html.
A contractor will charge $308 to install a 14-inch power ventilator which includes the labor and material; you can do it for more than half and pocket a 57 percent savings.or about $130 you can buy what you need: a power ventilator, an electrical box and cover, a short piece of three-wire BX or Romex cable, a package of wire nuts and a quart of roofing cement.
1 Some dryer vent cleaning companies charge $150 per vent, but will decrease the price the more vents need to be cleaned in a single task. 2  Vent accessibility. 3  Most vents can be accessed with ease, while others require a more laborious process. 4  Many service providers charge up to $150 for a hard-to-access vent.