What''s advantage of wool?

Naturally non-allergenic.
        Wool reduces the dampconditions that encourage dust mites.
Fire resistant.
        Wool is the safestcarpet fibre because it is the most difficult to ignite. 
Humidity regulator.
        Wool has a naturalability to regulate the humidity of an interior. Wool absorbsmoisture when the atmosphere is damp and releases it when theatmosphere is dry, creating a more comfortableenvironment. 
Renewable
        Furthermore, woolbenefits from a number of eco-friendly qualities as it isrenewable, sustainable, 100% natural and biodegradable.