Procurement consultant smoke, deodorant
There are two different types of smoke, natural gas drainage pipe (classic) and the type of activated carbon used. Type the classic suit in the garden or kitchen stove smoke pipe can be attached to the outside. Advantages of direct exhaust air suction stronger, more durable and less costly. The second external features hood, hood also has the ability to filter fumes. Thus the price of the used activated carbon is usually 1.5 to 2 times more expensive than the classic type, not to mention the cost to replace the coal (typically after six-nine months for one-two million / ).
Most brands have two classic machine and the use of activated carbon. Price difference hood is quite large, depending on the origin, style and power.
Use and preservation